a girl mass of 40 kg runs up a staircase of 30 steps in 10 sec.if the height of each step is 0.1m , find the power developed by her . take g = 10 ms^-2
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Answer:
Given, mass of the boy, m=40kg ;
total height gained, h=50×10cm
=500cm=5m
time taken to climb, t=5s
Work done by the boy,
W=mgh=(40)(10)(5)=2000J
Power developed, P=tW=52000=400W
Explanation:
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