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Grade upto college level Mechanics

A water pump lifts water from a level 10 m below the ground. Water is pumped at a rate of 30 kg/minute with negligible velocity. Calculate the minimum horsepower the engine should have to do this.

Profile image of Amit Saxena
12 Years agoGrade upto college level
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1 Answer

Profile image of Jitender Pal
12 Years ago
Sol. h = 10 m flow rate = (m/t) = 30 kg/min = 0.5 kg/sec power P = mgh/t = (0.5) * 9.8 * 10 = 49 W So, horse power (h.p) p/746 = 49/746 = 6.6 * 10^-2hp