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.

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Solution

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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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.

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.

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.

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.