Physics, asked by parmardeep6114, 10 months ago

A boy of mass 50 kg runs up a staircase of 60 step in 9s. If the hight of each step is 15cm,find his power

Answers

Answered by sayantanbasu8p6pkr2
2

Answer:

Mass of the boy(m)=50kg

Time taken (t)=9s

(h)Total height of the staircase=No of stairs×height of each step

h=60×15cm=900cm=9m

Acceleration due to gravity (g)=10m/s^2

Total work done(W)= mgh

(P)Power of the boy= W/t=mgh/t

P=(50×9×10)/9=500W

Power of the boy is 500W

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