Physicsmedium · Past Paper
A car is moving with a constant speed of 20 m/s. The engine exerts a force of 500 N. The power of the engine is:
A10 kW
B25 kW
C100 kW
D2.5 kW
✓ Correct Answer: A — 10 kW
Power = Force * Velocity = 500 N * 20 m/s = 10,000 W = 10 kW.
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