1.

Work done by small variablw force in small displacement 2x equal to small area of small element

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Answer:

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.

The work done by a constant force of magnitude F on a point that MOVES a displacement

Δ

x

in the direction of the force is SIMPLY the product



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