A boy of mass 50kg,climb a hii of 5m high,calculate the power use
{1}when the boy used the total time of 20s.[g:10m/s]

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  1. 125J

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  2. Correct.

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  3. P = F * d/t = Mg * d/t = 500 * 5/20 = 125 J/s = 125 Watts.

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