Intro to Calculating Work Video Lessons

Concept

# Problem: Part AYou 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 movee. None of the above

###### FREE Expert Solution

We are required to explain the concept of work.

Work:

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

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###### Problem Details

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