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## Homework Statement

A pump has to raise water from a depth of 50m and eject it at 10m/s. If the flow rate is 2 kg/s, what horsepower is needed.

## Homework Equations

## The Attempt at a Solution

t = s/v = 5 seconds

m = t/flow rate = 2.5kg

E = mgh = 1250J

P = E/t = 250W

Horsepower = 0.34Hp