A new record for running the stairs of the empire state, Ask an Expert

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A new record for running the stairs of the Empire State Building was set on 3 February 2003. The 86 flights, with a total of 1576 steps were run in 9 minutes and 33 seconds.

Part A. If the height gain of each step was 0.20 meter, and the mass of the runner was 71 kilogram, find what was his average power output during the climb? (W)

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