Question

A pump is required to lift 800 liters of water per minute from a well 15.0 m deep and eject it with a speed of 17.0 m/s.
How much work per minute does the pump do?

Answer 1

use
E = mgh + 1/2 mv^2
= (800 L)(1 kg / 1 L) (9.8 m/s^2) (15m) + 1/2 (800 L)(1 kg / 1 L) (17 m/s)^2
= 233200 J

Answer 2

I agree with that.