Question

what is a pulley machine​

Answer 1

Pulley is a simple machine and comprises of a wheel on a fixed axle, with a groove along the edges to guide a rope or cable. Pulleys are used to reduce the time and energy taken to lift heavy objects.

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Answer 2

Answer--- √

◆ Pulley is a simple machine it has a metallic or wooden disc with a groove through which thread can pass.