Look at the picture i provided, hope this helps! :)
A simple machine- includes a wheel with a grooved rim where a rope or chain can run to change the direction of the pull and lift a load.
A pulley consists of a wheel, a rope or cable, a support frame, and a load. It is a simple machine that helps lift or move objects more easily by using mechanical advantage. Pulleys are used in various applications, such as cranes and elevators, to make lifting heavy items simpler.
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