Question

A. Give reason

1. cranes make use of movable pulleys.​





Help me !

Answer 1

Answer:

The pulley helps make it possible for the crane to lift heavy loads without having to put additional stress on the arm by forcing it to do all of the work, the cables between the motor and the object being lifted is run through a series of cables and pulleys to minimize the amount of work needed to lift the object offplz.

Explanation: