Question

when does a force perform work?
Pls answer accurately!!!!​

Answer 1

Answer:

a force performs work when an actual displacement of a body occurs under the action of the applied force

However in case of zero displacement despite the force being applied the force is not said to be done that is zero work is done by the force

Thus for work to be done two conditions are necessary

Force must be applied

Displacement of the body should occur under the action of the applied force

Explanation:

Answer 2

Force performs work when, on applying force, there is a change in position, shape or size of the object. If there is no change then it is said that no work is done