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19 August, 22:27

A boy of mass 60 kg runs up a staircase of 50 steps in 10s. If height of each steps is 12 cm, find the power

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  1. 19 August, 23:55
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    350 W

    Explanation:

    50 steps * 0.12 m/step = 6 m

    Power = work / time

    P = mgh / t

    P = (60 kg) (9.8 m/s²) (6 m) / 10 s

    P = 352.8 W

    Rounding to two significant figures, the power is 350 W.
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