An electric motor does 380 000 J380\,000\text{ J}380000 J of work to lift a heavy crate to the top of a scaffolding. It takes 5 minutes5\text{ minutes}5 minutes to lift the crate.
What is the average power of the motor?
1.3 kW1.3\text{ kW}1.3 kW
76 kW76\text{ kW}76 kW
1900 kW1900\text{ kW}1900 kW
114 000 kW114\,000\text{ kW}114000 kW
95 exam-style questions on CIE IGCSE Physics 1.7.4 Power. Each one has a worked solution and a mark scheme showing where the marks go.