Two men lift a 45 kg block from the floor to a shelf 10


Two men lift a 45 kg block from the floor to a shelf 1.0 meter above the floor without accelerating the block. How much work is done by each man? The answer is 220 J but how?

In the problem above, how much work is done by the earth?

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Physics: Two men lift a 45 kg block from the floor to a shelf 10
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