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. The work done by them in the ratio

Options :
  1. 1:2
  2. 2:1
  3. 1:1
  4. None of the above
Answer and Explanation :-

Answer: Option 3

Explanation:

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