Physicsmedium · Past Paper
What is the power of a pump that can lift 50 kg of water to a height of 10 m in 5 seconds? (g = 10 m/s^2)
A100 W
B1000 W
C500 W
D2500 W
✓ Correct Answer: B — 1000 W
Power = mgh / t = (50 * 10 * 10) / 5 = 5000 / 5 = 1000 Watts.
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