Question

Is pulley a simple machine ? Justify your answer.

Answer 1

Explanation:

The pulley is really a wheel and axle with a rope or chain attached. A pulley makes work seem easier because it changes the direction of motion to work with gravity. Let's say you have to lift a heavy load, like a bale of hay, up to the second floor of a barn.Pulley. Another simple machine that uses a wheel is the pulley. A pulley is a simple machine that consists of a rope and grooved wheel. The rope fits into the groove in the wheel, and pulling on the rope turns the wheel.

Answer 2

Answer:

A pulley is a simple machine that is used to lift heavy objects. Block and tackle system is a modified form of a pulley. Pulleys are usually used in sets designed to make the amount of force needed to lift something smaller.