Physics (AS & A Level) · Oct / Nov 2018 · Paper 12 · Question 18
A car of mass 1800 kg accelerates along a horizontal road so that its speed increases from 20 m s$^{-1}$ to 25 m s$^{-1}$ in a time of 5.4 s. What is the average useful power output of the car's engine?
- A4.2 kW
- B38 kW
- C120 kW
- D1100 kW
As printed in the paper
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Correct answer: B. 38 kW
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