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Find the power required to raise 4m3 of water per minute a vertical distance of 3m, discharging at a speed of 5ms-1. Take g to be 10ms-2

(1m3 has a mass of 1000kg)

 Dec 2, 2018
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F= mg    = 4(1000)(10) = 40000 kg-m/s^2 = 40000 N

W= F x d = 40,000(3) = 120,000 kg-m^2/s^2= 120,000 j

P= W/t = 120000/60 = 2000 j/s

 Dec 2, 2018

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