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Lift an object (box) through some distance. Did you do some work in doing so? To lift the box, you exert a force. As you lift the box, work is done. The force has raised the box through a height.

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Question

Lift an object (box) through some distance. Did you do some work in doing so? To lift the box, you exert a force. As you lift the box, work is done. The force has raised the box through a height.

But some forces do not produce motion in objects. These forces do not produce any work.

Short Answer
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Solution

Yes, work is done when the box is lifted because a force is applied and the box is displaced upward through a height.

W = F × d

If a force does not produce any displacement, then no work is done.

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Chapter 1: Force, Work, Energy and Power - 1.4 Graded Assignment [Page 33]

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Frank Physics Part 2 [English] Class 10 ICSE
Chapter 1 Force, Work, Energy and Power
1.4 Graded Assignment | Q 1. | Page 33
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