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24 July, 12:40

a man a man weighing 800 and climbs up a flight of stairs to a height of 15 m in 12 seconds what is the man's average power output

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  1. 24 July, 14:13
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    1 kW

    Explanation:

    We assume the man's weight is measured in newtons. Then the power expended is ...

    (800 N) (15 m) / (12 s) = (12000 N·m) / (12 s) = 1000 N·m/s = 1000 W

    The man's average power output is 1 kilowatt.
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