# a tube wells pumps out 3000 Kg of water per minute , if water is coming out with a velocity of 5m/s , what is the power of the pump ?

3000Kg water per minute. Mass pumped per sec = 50 Kg/sec

Power is the kinetic energy of water coming out per second

$K=\frac{1}{2}mv^2=\frac{1}{2}\times50\times25=625J/s=625watt$

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