Physics (AS & A Level) · Oct / Nov 2021 · Paper 13 · Question 19

A water pump is driven by an engine. The pump raises a volume of 0.50 m³ of water in 1.0 minute from a depth of 30 m. The pump has an efficiency of 70%. The density of water is 1000 kg m⁻³. What is the useful output power from the engine?

1. A2.5 kW
2. B3.5 kW
3. C150 kW
4. D210 kW

As printed in the paper