A person of mass 60kg, runs up a fight of 30steps, each measuring 20cm in height, in 15sec. What is the power developed by a peson?
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Answer:
Power = 240 W
Explanation:
Given
Mass = 60 kg
Time = 15 s
Number of steps = 30
Height of one step = 20 cm
= 0.2 m
Total height = 6 m
Power = Work/Time
= mgh/t (potential energy)
= 60×10×6/15
= 240 W
Hope it helps!!
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