Question

give four points of pulley mass system​

Answer 1

Answer:

1) A pulley is a simple machine that consists of a rope wrapped around a grooved wheel. Pulleys are generally used to lift a load.

2) There are three types of pulleys: fixed pulleys, moveable pulleys, and compound pulleys. Compound pulleys consist of two or more fixed and moveable pulleys.

3) The ideal mechanical advantage of a pulley equals the number of rope segments pulling up on the load.