a man mass of 50 kg runs up a staircase of 20 steps in 15 sec . if the height of each step is 10 cm .find the work
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Answer:
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Explanation:
Given mass of body (m)=50kg
h=45×15=675cm=6.75m
t=9s δ=10m
Potential energy =mgh
=(50×10×6.75)5
=33755
Power of the body =TimePotentialenergy
=93375
=375W
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