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Anees Chakraborty
Asked: 2022-11-07T17:56:16+05:30 In:

A man `M_(1)` of mass `80 kg` runs up a staircase in `15 s`. Another man `M_(2)` also of mass `80 kg` runs up the same staircase in `20 s`. The ratio of the power development by then will be:
A. (a) `1`
B. (b) `4/3`
C. (c) `16/9`
D. (d) None of the above

A man `M_(1)` of mass `80 kg` runs up a staircase in `15 s`. Another man `M_(2)` also of mass `80 kg` runs up the same staircase in `20 s`. The ratio of the power development by then will be:
A. (a) `1`
B. (b) `4/3`
C. (c) `16/9`
D. (d) None of the above
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1 Answer

  1. Correct Answer – B
    Power P=Work/Time
    Work done by both will be same.
    Hence, `P_1/P_2=t_2/t_1=20/15=4/3`

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