Question

What is the only function of the pulleys in the diagram?
(1 point)

1 to change the mass of the bricks to make it easy to raise

2 to change the direction of the force applied to raise the bricks

3 to change the duration of time to raise the bricks

4 to change the amount of energy needed to raise the bricks

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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