A boy of mass 80 kg runs a staircase of 50 steps 10 seconds. If every step is 15cm
high, find his power.
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Answer:
Power=375 watt
Step-by-step explanation:
F=80×10 N= 800N
d=50×0.15 m=7.5m
t=10s
Power= W/t
=F×d/t
=500×7.5/10 watt
=3750/10 watt
=375 watt
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