Question

A boy of mass 50kg runs up a stair case of 40 steps in 8 seconds if the height of each step is 15 cm find his power g=10 m/s2

Answer 1

Explanation:

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Answer 2

Answer:

375 W

Explanation:

Energy spent=m×g×h=(50×10×6)J=3000J

Power=3000J/8s=375W