Question

a boy whose mass is 40kg finds that he can run up a flight of 45 steps each 16 cm high in 5,2s .Find the power he used to run the steps [g= 9,8m/s]

Answer 1

Answer: 542.769 W IS THE ANSWER.

Explanation:

HI,

  P=W/t=mgh/t=40×9.8×45×16×10⁻²/5.2=542.769W

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