Question

Why Pulley are called simple machine

Answer 1

Answer:

One wheel. If you have a single wheel and a rope, a pulley helps you reverse the direction of your lifting force.

Additional information:-

There are five main types of simple machine: levers, wheels and axles (which count as one), pulleys, ramps and wedges (which also count as one), and screws.

A pulley is a type of simple machine that uses a wheel with a groove in it and a rope. The pulley helps you to move the load or change direction of the force. Some examples of pulleys include cranes, flag poles, and window blinds. When multiple pulleys are used together it's called a block and tackle.

Explanation:

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