help required with work energy?

Question

a water pump lifts water from a level 10m below the ground . water is pumped at a rate of 30kg/minute with negligible velocity. calculate the minimum horsepower the engine should have to do this

Answer 1

Convert 10M to feet and 30 Kg to lbs. (32.8 and 66) multiply together to get 2165 ft.-lb/min. Then divide by 33,000 to convert to 0.066 HP.