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Question

A body of mass $$m$$ kg is lifted by a man to a height of one meter in $$30$$ sec. Another man lifts the same mass to the same height in $$60$$ sec, calculate the ratio of the work done by the two men.

Solution
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Both work the same amount of work because they lift the same mass to the same height.
This ratio will be 1:1.
Also, work does not depend on time.

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