Question

In order for work to be done, what three things are necessary?

Answer 1

The three things that are necessary are power, a force, and movement in the opposite direction of the applied force.

Answer 2

Answer:

unbalanced force, motion, and movement in the same direction of the applied force

Explanation:

Work Done is actually the product of force and distance. If force is applied without covering a distance in the direction of the force then work is zero

Force, we know, is that we tend to change a body's state of rest or uniform motion on a straight line. Force is also the pull or push on an object

so In order for work to be done, what three things are necessary?

unbalanced force, motion, and movement in the same direction of the applied force

if there is a balanced force applied on the body , motion won't occur .In Fact the body will be at equilibrium which means zero work.