1.

A boy of mass 50kg runs up a height of 5m in 6 seconds, calculate the power used by the boy?

Answer»

ork/timework=force×displacementforce=mass×accelerationmass=50kga=10 m/sec f=50 × 10f=500Newtonw=f×dd=5mw=500×5=2500Jp=w/tt=6 secondp=2500/6p= 416.66.....P= 416.66 WATT (APPROX)



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