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Contrast situations where work is done with different amounts of force to situations where no work is done such as standing still???

Sagot :

AL2006
Picking up a sheet of paper . . . work done with small force
Picking up a glass of water . . . work done with moderate force
Picking up a huge boulder . . . work done with a great tremendous force
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Standing still . . .
Holding your tongue out as far as it will go . . .
Holding your arm over your head for 3 days . . .
Holding a huge boulder motionless over your head . . .
Pushing on a brick wall . . .
Pushing as hard as you can against a truck with the wheels locked . . .
. . . . . No work done at all, because the force doesn't move through a distance.

Work done = (force) times (distance)

If the force doesn't move, then the distance is zero, and the work done is zero.
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