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Calculate the power of an electric pump in horse power, which can lift 2000m^3 of water from a depth of 20m in 25 minutes.

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Calculate the power of an electric pump in horse power, which can lift 2000m3 of water from a depth of 20m in 25 minutes. 

[Take g = 10ms2 and 1ml of water = 103kg]

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1m3 of water = 103kg 

∴ 2000m3 of water has mass = m = 2000 x 103kg 

wt. = force = mg = 2000 x 103 x 10N 

Displacement = depth = 20m

work done = F x S t = 25 min = (25 x 60)S

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