A pump takes 20sec to lift 100kg of water to water tank situated at height of 10m .What is the power of the pump? g=10 m/s^2 (write only value and initial of its unit)
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Given..
Time = 20sec
F = ma=100×10 = 1000N
Height /displacement=10m
W= F×S=1000×10=10000J
P=W/T
= 10000/20=500Watt
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