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MCAT Question A Day - 4/9/14 - Answer!

What is the work done in holding a 20-N weight at a height of 2m above the floor for a total of 5s?

A.  0 J
B.  8 J
C.  2 J
D.  200 J

The correct answer is (A). Work is force times distance moved. A body held at a given height is not in motion, so work is no longer being performed on it.

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