They were invented a long time along time ago.
Both levers and pulleys are simple machines that are used to reduce the amount of force needed to lift heavy objects. They both involve a pivot point (fulcrum for levers and axle for pulleys) to help in the lifting process. Additionally, both levers and pulleys rely on mechanical advantage to make work easier by increasing the distance over which the force is applied.
Pulleys are considered part of the lever family because they operate on similar principles of transferring force. Pulleys use a wheel and axle system to redirect and amplify force, just like how levers use a rigid bar to do the same. Both pulleys and levers help make it easier to lift heavy objects by trading off force over distance.
Levers are simple machines that help to lift or move objects by applying force at a certain point called the fulcrum. Pulleys are also simple machines that consist of a wheel with a groove and a rope or belt wrapped around it, used to lift or pull heavy objects with less effort.
Both pulleys and levers are simple machines that help in lifting or moving objects. The main difference is that a pulley is a wheel with a grooved rim around which a rope or chain is pulled to lift objects, while a lever is a rigid bar that pivots on a fulcrum to lift or move objects. However, both pulleys and levers rely on the principle of mechanical advantage to make work easier by reducing the amount of force required to move an object.
Both levers and pulleys are simple machines that can be used to make work easier by allowing us to lift or move heavy objects with less effort. They both involve applying force to achieve a desired output, whether it is lifting a load with a lever or pulling a load with a pulley.
Archimedes discovered the concept of gravity with his levers and pulleys, his theory of displacement and invented the screw.
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Both levers and pulleys are simple machines that are used to reduce the amount of force needed to lift heavy objects. They both involve a pivot point (fulcrum for levers and axle for pulleys) to help in the lifting process. Additionally, both levers and pulleys rely on mechanical advantage to make work easier by increasing the distance over which the force is applied.
ok
pulleys, levers, pendulums
Archimedes (not a group, a guy) invented pulleys as well as other simple machines.
A bicycle consists mainly of Wheel and axles, levers, screws
simple machiens are the thing which reduce human effort
Archimedes that hero
the categories are levers, wheel and axel , pulleys,wedges, inclined planes, and screws.
Pulleys are considered part of the lever family because they operate on similar principles of transferring force. Pulleys use a wheel and axle system to redirect and amplify force, just like how levers use a rigid bar to do the same. Both pulleys and levers help make it easier to lift heavy objects by trading off force over distance.
idk but pulleys were made in Sicily 250 B.C