Question

What is the only function of the pulleys in the diagram?

Answer 1

The only function of the pulleys in the diagram is to change the direction

of the force applied to raise the bricks.

What is a Pulley?

A pulley is a wheel which has a flexible rope on its rim and helps to

transmit energy and motion.

In the diagram given, we can see that the pulley is used to raise a mass of

block by three people. They pull the rope horizontally in order to raise the

block vertically. This means that it was used to change the direction of the

applied force.

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