Two women Shanti and Kamla each of mass 50kg and 60kg respectively climb up through a height of 10m. Shanti takes 20s while Kamla takes 40s to reach. calculate the difference in the power expended by Kamla and Shanti???
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MASS OF KAMLA=60 KG(M2)
TIME TAKEN BY SHANTI=20SECONDS(T1)
TIME TAKEN BY KAMLA=40 SECS(T2)
HEIGHT REACHED BY THEM=10M
WORK DONE BY SHANTI= M1GH
=50*9.8*10
=4900J.
POWER= WORK DONE/TIME TAKEN
=4900/20
=245W.
WORK DONE BY KAMLA= M2GH
=60*9.8*10
=5880J.
POWER= WORK DONE/TIME TAKEN
=5880/40
=147W.
DIFFERENCE IN POWER=( 245-147)W
=98W.