Question

What does the work done by a variable force...​

Answer 1

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Thus, for a variable force, the work done can be expressed as a definite integral of force over displacement for any system.

Answer 2

Explanation:

Using Integration to Calculate the Work Done by Variable Forces. A force is said to do work when it acts on a body so that there is a displacement of the point of application in the direction of the force. Thus, a force does work when it results in movement.