Which of the following best explains why lifting a heavy object with a single fixed pulley and rope makes the task seems easier?

Options

A. The direction of the force required to lift the object is changed.
B. The force required to move the object is applied over a greater distance.
C. More work is done while moving the object.
D. Less force is needed to lift the object.

Answer

A

Explanation

Less force is needed to lift the object less work is done when moving the object. The direction of the force required to lift the object is changed