A water pump can lift 1000 Kg of water to a height of 4 m in 300 sec.
Find power of the pump. Given g=10m/sec2
(Hint: Here force (f) is
weight of water, f=1000x10 N, h=4m and t=300sec)
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Answer:
Given,
m=1000kg
t=1min=60sec
h=10m
v=10m/s
g=10m/s2
Power, P=tmgh+21mv2
P=601000×10×10+21×1000×10×10
P=60100000+50000=60150000=2500W
As we know that, 1horse−power=746Watt
1W=7461horse−power
2500W=7462500=3.25HP
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