pinky18
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the power of a motor pump is 5 kilowatt . how much water per minute the pump can raise to a height of 20 m ( g = 10 m/s 2 )

Answer :

Average power, P = change in energy (∆E)/ time taken(∆t).
Hence, ∆E = P∆t
→ mg∆h=P∆t
From given values,
→ m(10)(20) = 5000(60)
→ m = 1500 Kg

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