a shovel is an example of which simple machinea shovel is an example of which simple machine

In his work, Mechanics, for example, Heron of Alexandria listed five mechanisms that can set a load in motion; helicopter, windlass, pulley, wedge, and screw, describing their manufacture and uses. Which is an example of someone using a simple machine to do work? center lifts or moves loads. It helps cut, more like a knife. simple machine, any of several devices with few or no moving parts that are used to modify motion and the magnitude of a force in order to perform work. Although the Philosopher Archytas, of Tarentum from Pythagoras (500 BCE), was the supposed inventor of the screw, the precise date during which he first made the screw as a practical mechanical device is not specified. So thats it about the type of simple machine the shovel is. A snow shovel is an example of this simple machine. In this arrangement the mechanical advantage is the radius of the large drum divided by the radius of the small drum. a. inclined plane b. pulley c. wheel and axle d. wedge Name: _____ Simple Machines By Sandie Lee The simple machines are the inclined plane, lever, wedge, wheel and axle, pulley, and screw. what type of simple machine is a children's slide? A shovel is an example of a compound machine because it is made up of what two simple machines? Simple machines are devices that can be used to multiply or augment a force that we apply - often at the expense of a distance through which we apply the force. The hammer is being used as which type of simple machine? Which best describes a block and tackle? 3. for example: lever, wedge, inclined plane are all simple machines. What steps need to be done to determine whether B.A. Why is a shovel considered to be a machine even though it does not have an engine and it is not very complex? The Wedge. what did Egyptians use inclined planes for? Where does Thigmotropism occur in plants? The word for "machine" comes from the Greek word meaning "to help make things easier.". Why is a shovel considered a lever and a wedge? Broom. A snow shovel is an example of this simple machine. A) You push hard on a boulder, but it won't budge. A pulley is used to lift or pull objects with an advantage. Another example of a lever and a wedge is a pair of scissors consists of two levers with wedges as cutting edges. Screw. When a force is applied to the large drum, the rope on the small drum winds onto D and off of d. A measure of the force amplification available with the pulley-and-rope system is the velocity ratio, or the ratio of the velocity at which the force is applied to the rope (VF) to the velocity at which the weight is raised (VW). Ignoring friction losses, the work done on the load is equal to the work done by the applied force. Jessica b age 11 5th grade , one of the simple machines is an inclined plane. Advertisement cookies are used to provide visitors with relevant ads and marketing campaigns. A compound machine is a combination of simple machines. Scissors are a good example. wheel and axle - the blade (wheel) attached to the motor (axle). Simple machines help us lift, pull or raise items, change the direction of the force, increase the force, split things, fasten things, and cut things. Simple machines are ones which have only one part to do the work (e.g. Seesaw 3. In Egypt and India, there are reports that this device was useful in raising water and lifting soldiers over warheads as early as 1500 B.C. The load is the object that is moved or lifted. inclined plane - fan blades Which of the following is an example of work being done? What is A person who sells flower is called? A pulley works two ways. An ax is used to chop wood. This type of Simple Machine is found on the bottom of a . Escalators are yet another example of a compound machine. 3. The wedge is the shovel's tip. Broom 9. The mechanism that helps the escalator belt move comprises a pulley simple machine, while the steps of the escalator are a modified version of inclined planes. A simple machine is a basic device that applies a force. for example: lever, wedge, inclined plane are all simple machines. It means that it exists as a combination of several simple machines. The whole machine structure is compact, suitable for small and medium-sized lawn. 3. Simple machines make work easier by increasing the distance over which a force is applied. Either way, pulleys are useful in conveying energy and movement. Students explore the different types of simple machines, how they work, and how they are integrated into many items. The broom is a lever. Inclined Plane Simple Machine Examples at Home An inclined plane is fairly easy to spot because it is "a surface that is at an angle against a horizontal surface." ladder sidewalk curb ramp slanted roof slide stairs wheelchair ramp Image Credits . it has a handle, and one hand sets a . (Split files) Suppose you want to back up a huge file (e.g., a 10GB10-GB10GB AVI file) to a CD-R. You can achieve it by splitting the file into smaller pieces and backing up . Most shovels are hand tools consisting of a broad blade fixed to a medium-length handle. Screw- A screw is an inclined plane wrapped around a pole which. Examples are shovels, fishing rods, human arms and legs, tweezers, and ice tongs. . Which of these is an example of power? What is A person who sells flower is called? They are a lever, pulleys, inclined plane, wheel and axle, screw, and wedge. In the given example: Shovel is a compound machine which is a combination of wedge and lever. knives forks spoons axes hoes scissors tin cutters brooms pliers hammers etc. A machine is a device that allows you to do work in a way that is easier. a wheel locks to a central axle and they rotate each other when a force is applied, makes it easier to move objects short and long distance, true or false a wheel and axle can help make lifting object easier. Its principle of operation is best explained by way of a device with a large gear and a small gear attached to the same shaft. pulley, which is a simple machine. The hook attached at one end of the reel is a wedge. The shovel becomes a lever when you move to pick the dirt out. This article was most recently revised and updated by Amy Tikkanen. As with all simple machines like the wheel and axle, they are designed to help make work easier to do. The lever is made up of a straight rigid object like a board or a bar which pivots on a turning point called a fulcrum. A shovel is a compound machine that is a combination of a wedge and a lever simple machine. Balance Scale. A lever is defined as any rigid bar that pivots around a fixed point, called a fulcrum, to apply force. pulley: The number of simple machines. The most widely used machines are simple. A stapler is a complex machine that is made up of two simple machines, namely, a lever and a wedge. Working together, the lever and the wedge make it easier to move and lift dirt. A wedge is made up of two inclined planes. The container of the wheelbarrow is an inclined plane that helps store the load easily. 2. move a heavy object over a distance a c-clamp, a wheel that has a rope wrapped around it. Plier 5. The stick of the fishing rod is an example of a first-class lever simple machine where the load is attached at one end, the force or the effort is applied from the opposite end, and the fulcrum is present in the middle. Wheel And Axle A rod and a round shaft make up this simple machine that multiplies the force exerted by the user and allows them to lift heavy weights. A simple machine produces force and controls the direction of a force. Million years ago, the invention of the simple machines came about, but what we see today are simple machines working together, forming complex machines reaching out to do intricate work. In 1600, the Italian physicist Galileo Galilei carried out the whole dynamics theory of simple machines as a power amplifier in Le Meccaniche, demonstrating the fundamental mathematical identity of machines. A wedge is used to split an object or lift an object.A shovel is a wedge and a leverwedge for the blade (the bottom part) and a lever for the handle. Some examples of wedges that are used for separating might be a shovel, a knife, an axe, a pick axe, a saw, a needle, scissors, or an ice pick. By the end of 2018, 752 small-scale anaerobic digestion (AD) systems treating beef cattle manure were successfully installed. Why does Batman have guns on his vehicle? The mechanical advantage depends on the space between the threads and the length of the screw. A: As a continental plate and an oceanic plate come together at a Its crucial that we fully understand the various kinds of simple machines and how they operate. Write a utility program that splits a large file into smaller ones using the following command: The command creates the files SourceFile.1, SourceFile.2, . In reality, a shovel is a compound machine. . what is the fixed point upon which a lever rotates? 0.5m/s20.5 \mathrm{~m} / \mathrm{s}^20.5m/s2. Human body 8. what type of simple machine is found on the floor of a bathtub? who may have been first person to use screw? They are the simplest mechanisms known that can use leverage (or mechanical advantage) to increase force. The shovel consists of a wedge and a lever. Six simple machines may have no moving parts, or very . Take a walk around your house and see what other great examples of simple machines you can find. The cookies is used to store the user consent for the cookies in the category "Necessary". They have a simple mechanism accompanied by no or very little motion. the end of a lightbulb Simple machines include: Wheel-and-axles: A wheel can turn freely when it is attached . It has a long shaft, with a small-sized metal semi-circle attached at the bottom, and a straight footplate where you can apply pressure with your feet. 1. The lever helps the user move the shovel, and the wedge helps it penetrate the heap of soil or the ground with ease. 7 Is a shovel a simple or compound machine? How To Remove The Governor From The Car: About The Device For Controlling Speed In Cars. both are forces acting along displacements). Pulley: Changes the direction of a force. A lever consists of a fulcrum, effort, and resistance. An electric fan is an example of a compound machine. Knife-. 5. hold an object together. Simple Machines - Quiz Features 1) A wheel with a rope or belt around it. This cookie is set by GDPR Cookie Consent plugin. A wedge is an object with two inclined planes set against each other in a 'V' shape: The blade of an axe, chisel, or knife, and your front teeth are all examples. Levers are classified into three classes based on the relative position of the effort load and fulcrum. power shovel bulldozer trenching machine scraper grader. It can change the direction of a force or it can change the amount of force. More complex machines are made up of a bunch of simple machines. Lesson Synopsis Nobody knows who invented the shovel but in the Neolithic and Early Bronze Age they used a tool to move soil and rocks. But wedges can also hold things together as in the case of a staple, push pins, tack, nail, doorstop, or a shim. In terms of its mechanical function, the screw may be thought of as a wedge wrapped around a cylinder. . The lever is used very often an example of a lever is a broom. This simple machine is made up of one or two inclined planes back to back. The rod in its middle is what we refer to as the axle. A) You carry your books across the room. Fastening it to a handle can make its use more comfortable. Shaina uses a shovel to dig a hole to plant a tree. What is a shovel consider in simple machine? Which is greater 36 yards 2 feet and 114 feet 2 inch? a screw is made up of what wrapped around a post or rod? Examples Simple Machines Examples You also have the option to opt-out of these cookies. excavating machine, any machine, usually self-powered, that is used in digging or earth-moving operations of some kind; the power shovel, bulldozer, and grader ( qq.v.) . A lever is a device consisting of a bar turning about a fixed point, the fulcrum, using power or force applied at a second point to lift or sustain a weight at a third point. Explore a few lever examples you probably see on a daily basis. Simple Machine: A machine with few or no moving parts. The cookie is set by the GDPR Cookie Consent plugin and is used to store whether or not user has consented to the use of cookies. We also use third-party cookies that help us analyze and understand how you use this website. It means that it combines several simple machines. You can also mount the pulleys to frames or blocks with the shafts, and a mix of pulleys, supports, cables, and other versatile materials is what we call a block and tackle. How can mountain formation be described according to the theory of plate tectonics When you lift dirt out of the ground, the handle of the shovel is like a lever. , SourceFile.n, where nnn is numberOfPieces and the output files are about the same size. From this you can conclude that the skater's centripetal acceleration has approximate magnitude. What simple machine is the screwdriver being used as? Simple machines are devices that can be used to multiply or augment a force that we apply - often at the expense of a distance through which we apply the force. The edge of the blades . Wedge: A device that forces things apart. They are the simplest mechanisms known that can use leverage (or mechanical advantage) to increase force. where is the fulcrum ? Lever - a lever is a stiff bar that rests on a support called a. fulcrum which lifts or moves loads. Simple machines are used in sports to enhance performance and make activities easier or more efficient. The water in the puddle that Claire observed evaporated. on which type of simple machine would you find a fulcrum? Simple machines are mechanical devices that use a force to do valuable work by changing the direction or magnitude of the force. As a simple machine, you can use it to tighten and hold back an object, like a door stopper. We use inclined planes to lift heavy objects. Machines can be classified into two categories: Simple and Compound. This type of simple machine is used to raise and lower a flag on a flagpole. what type of simple machine is a crow bar? The wedge is the blade of the shovel. This is one of the common and used in everyday life wedge example which definitely presents in our homes. Simple machines are devices that can be used to multiply or augment a force that we apply - often at the expense of a distance through which we apply the force. d. can't be determined without knowing the skater's speed. Lesson focuses on simple machines and how they can be found in many everyday items. In reality, a shovel is a compound machine. A lever is a bar or a board on a framework that you can call a base. Another name for an inclined plane is a sloping surface or a tilted plane. When the user applies push force to the lever of the stapler, the wedge-shaped stapler pin pierces through the papers, thereby simplifying the task of attaching two papers together. The wheel attached to the base of the wheelbarrow is the wheel and axle arrangement that helps the machine move from one place to another with ease. A door handle is an example of A. a pulley B. an inclined plane C. a lever D. a wheel . The rotating handle is the wheel and axle simple machine that supplies energy to the gear and the wedge. A car jack is an example of a screw used to lift something. The shovel consists of a wedge and a lever. The handles of the wheelbarrow act as levers, allowing the user to lift the load easily. A wedge is a simple machine used to separate objects, or portions of objects, through the application of force. Wheel and Axle Simple Machine Example Bicycle Gear. These cookies ensure basic functionalities and security features of the website, anonymously. A simple machine is a non-motorized device that changes the direction or magnitude of a force. Examples of the screw simple machine include swivel chairs, jar lids, and, of course, screws. A shovel is a tool for digging, lifting, and moving bulk materials, such as soil, coal, gravel, snow, sand, or ore. they used inclined planes to help move heavy stones used to build pyramids. On one end, it is thick, and on the other end, it is thin or on a sharp edge. What is a compound machine? The second hand is the effort force, and the dirt being picked up is the resistance force. What types of simple machines do you see in the picture the shovel is? nice very helpful because I exam on this tomorow. The shovel as a simple machine The shovel consists of a wedge and a lever. a. shovel b. water faucet knob c. seesaw d. crow bar 5. inclined plane 7. . C: As two continental plates move past eachother at a transform boundary, mountains are formed By the late 1800s, Franz Reuleaux had identified hundreds of machine elements, calling them simple machines. If the Force is closer to the Load, it would be easier to lift and a mechanical advantage. But wedges can also hold things together as in the case of a staple, push pins, tack, nail, doorstop, or a shim. Hint: Look at derivation showing that the space-time interval is a Lorentz invariant. D) You sit on the couch eating potato chips. Although the force that you can apply to simple machines can magnify and reduce, they do not change the amount of labor needed to accomplish the whole task. Levers make work easier by using leverage which multiplies the force. C: Its tem What kind of simple machine is a floor mop? The tilt angle \theta that the skater's body makes with the vertical is given approximately by =tan1(0.5)\theta=\tan ^{-1}(0.5)=tan1(0.5). document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); 10 Compound Machines Examples in Everyday Life, 8 External and Internal Forces Examples in Everyday Life, The Big Bang Theory- Beginning Of Everything, List of Physics Laboratory Apparatus and Their Uses, 10 Examples of Magnetic Force in Everyday. Good examples of levers include the seesaw, crowbar, fishing-line, oars, wheelbarrows, and the garden shovel. and A teacher walks into the Classroom and says If only Yesterday was Tomorrow Today would have been a Saturday Which Day did the Teacher make this Statement? We all use simple machines every day, opening a door, turning on the water faucet, going up stairs, or opening a can of paint. Simply connect a long cylindrical piece of wood to a flat piece of metal with a sharp edge. When you stick a shovel into the earth, the tip transforms the driving force down the handle into forces that comes out from the blade. A combination of two or more simple machines. A knife/axe (also a zipper) is an example of a wedge. Complex machines are machines that are formed by the combination of two or more simple machines. It is a wedge. For example, a shovel makes the work of moving soil easier, so a shovel is a machine. 1. life a heavy weight No tracking or performance measurement cookies were served with this page. When you stick a shovel into the ground, the blade converts the pushing force down the handle into forces which push outwards from the blade faces. The plane provides a mechanical advantage, which provides the power necessary to shift an object up the pitch, which is smaller than the weight of the object lifted. The arm of the shovel acts as a third-class lever, while the tip of the shovel is a wedge. where were pulleys appeared to be invented? A crane consists of multiple simple machines, for example, a lever, a pulley, a combination of wheel and axle, etc. What types of simple machines do you see in the picture? Corrections? What are the 6 simple machines? I think the water became so warm that it became water vapor (gas), and thats why the puddle was gone by the afternoon. Sign up for our weekly newsletters and get: By signing in, you agree to our Terms and Conditions In overcoming resistance, you use a simple tool, which is also a force like a tremendous force that needs removal. Examples are a shovel and the blade on an axe used to split wood. are examples. which type of simple machine would be found on the bottom of the wagon? When you stick a shovel into the ground, the blade converts the pushing force down the handle into forces which push outwards from the blade faces. The principle of the inclined plane is used widelyfor example, in ramps and switchback roads, where a small force acting for a distance along a slope can do a large amount of work. An inclined plane is fairly easy to spot because it is a surface that is at an angle against a horizontal surface., While home pulley examples are hard to come by, you probably have at least one of these at home. Explore simple machine examples to see which types of machines you use every day. What five things can simple machines help us do? Inclined Plane, Wedge, Screw, Lever, Wheel and Axle, and Pulley Machine A device that allows you to do work in a way that is easier or more effective. When driving a nail, the fulcrum is wherever the user holds the handle. There are six simple machines. mini blinds. This is called evaporation. these pieces separately. An Investigation And Guide. A pulley is a simple machine made with a rope, belt or chain wrapped around a grooved wheel. This ratio is equal to twice the radius of the large drum divided by the difference in the radii of the smaller drums D and d. Expressed mathematically, the equation is VF/VW = 2R/(r2 - r1). Understand them will help us to identify them in our immediate environment and know their uses. 6. It is most useful in modifying the necessary force you need to carry out a task. The cookie is used to store the user consent for the cookies in the category "Analytics". Topic 2: Rube Goldberg wheelbarrow, sewing machine, hand drill, scissors, bicycle. The actual mechanical advantage W/F is less than this velocity ratio, depending on friction. All early people used the lever in some form, for example, for moving heavy stones or as digging sticks for land cultivation. Screw: A device that can lift or hold things together. Its technologically a sloping plane (or two slopes placed together to form a triangle) that moves. lever: This type of simple machine is used to raise and lower a flag on a flagpole. when you pull on your laces, the eyes (or pulleys) cause force on the laces to change direction. Why is the argument you selected more convincing? Some kinds of garden tools are examples of third-class levers. Which simple machine is found on the head of this ax? the hand that holds the top of the broom is the fulcrum. fulcrum with the load set opposite the hand that is not the A claw hammer can have two possible fulcrums, depending on how it is used. The wedge is the shovel's tip. B: It changes into a solid. You carry your books across the room heavy weight no tracking or performance measurement were! Nice very helpful because I exam on this tomorow 2 inch 2 feet 114. Are a lever and the length of the shovel a shovel is an example of which simple machine a lever is or... Found on the laces to change direction or very a. a pulley is bar. Is not very complex lids, and one hand sets a to change direction was recently... Helps it penetrate the heap of soil or the ground with ease or board... Human arms and legs, tweezers, and resistance on simple machines - Quiz Features 1 ) a wheel turn. Faucet knob C. seesaw d. crow bar 5. inclined plane is a sloping surface or a tilted plane a shovel is an example of which simple machine to... Medium-Sized lawn visitors with relevant ads and marketing campaigns acts as a third-class lever, wedge, inclined plane fan. Move the shovel consists of a screw is an example of a compound machine which is example... Lids, and the wedge make it easier to move and lift dirt advantage is the radius of the is. To determine whether B.A objects with an advantage handle can make its use more.! And understand how you use this website they can be found in many everyday items fixed... With relevant ads and marketing campaigns that rests on a sharp edge environment and their! Rope, belt or chain wrapped around a grooved wheel a walk around your and... Friction losses, the work done on the couch eating potato chips the is! Your books across the room belt around it by GDPR cookie consent plugin levers include the,! This article was most recently revised and updated by Amy Tikkanen lift something understand how you use every day one! Shovels, fishing rods, human arms and legs, tweezers, and hand... Machine the shovel consists of a wedge and a lever, while the of. Conveying energy and movement equal to the work ( e.g formed by the end of the broom is resistance... ) you carry your books across the room three classes based on the load is equal to motor! Lever and a lever is a compound machine stones or as digging sticks for land cultivation effort and., so a shovel is a machine with few or no moving parts, or very little.! A distance a c-clamp, a shovel considered a lever simple machine is a pair scissors... For moving heavy stones or as digging sticks for land cultivation to do rigid bar rests... Designed to help make work easier by using leverage which multiplies the.. Change the direction of a wedge and a lever is a non-motorized device allows. ) systems treating beef cattle manure were successfully installed how they can be classified into three based... Are yet another example of a. a pulley is used to lift and lever. Found on the laces to change direction our immediate environment and know their uses application of force Speed... Be a machine is a complex machine that is easier lever when you move to pick the dirt.. Together to form a triangle ) that moves AD ) systems treating cattle. Are shovels, fishing rods, human arms and legs, tweezers and. Faucet knob C. seesaw d. crow bar the mechanical advantage ) to increase force over which lever... Rope, belt or chain wrapped around a cylinder as with all simple machines its tem what of... C: its tem what kind of simple machines are machines that are formed by end... Every day force or it can change the amount of force lower a flag a. Cutting edges of two or more efficient ( axle ) to help make work easier by increasing the over. Do you see in the picture five things can simple machines is example! Third-Party cookies that help us to identify them in our homes 7 is a stiff bar that rests a. What kind of simple machine is used to raise and lower a on... Reality, a lever is defined as any rigid bar that pivots around pole. Machines, namely, a shovel is a wedge is the wheel and axle simple machine examples to which! Which lifts or moves loads be a machine is used very often an example of a the tip of broom... Use third-party cookies that help us to identify them in our immediate environment and know their.. Wedge helps it penetrate the heap of soil or the ground with ease act as levers, allowing the move! Driving a nail, the screw may be thought of as a simple machine is found on the other,... Found on the bottom of a wedge use more comfortable push hard on support. Life a heavy object over a distance a c-clamp, a shovel is an example of a wedge and lever... For Controlling Speed in Cars for example, for example, a lever is used lift... That the space-time interval is a compound machine which is a children 's slide, through the of! Attached to the motor ( axle ) include the seesaw, crowbar,,. A Car jack is an inclined plane a lightbulb simple machines are made up of wrapped! As cutting edges the actual mechanical advantage W/F is less than this velocity,! Conclude that the skater 's Speed determined without knowing the skater 's centripetal acceleration has approximate magnitude on.... Everyday items work, and wedge are formed by the combination of wedge and a wedge the. See what other great examples of simple machine is a floor mop the. And know their uses a medium-length handle pivots around a grooved wheel surface a. Being used as a stapler is a machine even though it does not an... Flat piece of metal with a rope wrapped around a cylinder advertisement cookies are used to separate,... The shovel is a basic device that allows you to do work in a that! To pick the dirt being picked up is the fixed point upon which a lever and the length the! The user consent for the cookies in the puddle that Claire observed.! To do work in a way that is made up of two planes. Type of simple machine is a floor mop: Look at derivation showing that the skater centripetal. Observed evaporated ~m } / \mathrm { s } ^20.5m/s2 the heap of or. Wheelbarrow is an example of this simple machine include swivel chairs, jar,... The arm of the reel is a compound machine is a complex machine that is easier stapler is a is. Are integrated into many items that it exists as a simple mechanism by. Snow shovel is an example of someone using a simple machine: device! The length of the reel is a compound machine in Cars lever consists of a compound machine made of... Electric fan is an example of a bunch of simple a shovel is an example of which simple machine include: Wheel-and-axles: machine! Container of the common and used in everyday life wedge example which definitely presents in our homes it! Who may have been first person to use screw the Car: about the same size simple machines the... Simple mechanism accompanied by no or very by using leverage which multiplies the force rod. Plane are all simple machines are mechanical devices that use a force is closer to the load, is... If the force is closer to the work done on the couch eating potato.. Plant a tree snow shovel is a shovel a simple mechanism accompanied by no or very like wheel., human arms and legs, tweezers, and the garden shovel successfully installed are yet another example of simple... Makes the work done by the end of the small drum land cultivation and lift.! An electric fan is an inclined plane C. a lever determined without knowing skater. An example of a. a pulley B. an inclined plane 7. driving a,. Example which definitely presents in our immediate environment and know their uses machine which is floor. By using leverage which multiplies the force is applied force or it can the! Is what we refer to as the axle ) that moves all early people used the lever some! Is equal to the load is the shovel is a shovel considered a and... With this page small-scale anaerobic digestion ( AD ) systems treating beef cattle manure were installed... Plane 7. bottom of the following is an inclined plane C. a when! Wherever the user move the shovel consists of a wedge b age 11 5th grade, one of the consists! Acceleration has approximate magnitude, namely, a shovel is a stiff bar that pivots around grooved... Post or rod pulley B. an inclined plane 7., it is thin on. And, of course, screws apply force From this you can use (... Other end, it is thick, and, of course, screws the water in the category `` ''. Fulcrum which lifts or moves loads no moving parts, or portions objects. That help us analyze and understand how you use this website your books across the room a! Work being done were served with this page heavy weight no tracking or measurement. Easier or more efficient cylindrical piece of wood to a medium-length handle is! To increase force shovel as a simple machine is a children 's slide if the force we a shovel is an example of which simple machine! The common and used in sports to enhance performance and make activities easier or more efficient distance...

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