We are required to explain the concept of work.

Work:

$\overline{){\mathbf{W}}{\mathbf{=}}{\mathbf{F}}{\mathbf{\xb7}}{\mathbf{d}}}$

Part A

You push very hard on a heavy desk, trying to move it. You do work on the desk:

a. whether or not it moves, as long as you are exerting a force.

b. never-it does work on you.

c. only if it starts moving.

d. only if it doesn’t move

e. None of the above

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