Physicsmedium · Past Paper
How much force is required to lift a 5 kg object vertically at a constant speed? (g = 9.8 m/s^2)
A5 N
B9.8 N
C49 N
D0 N
✓ Correct Answer: C — 49 N
To lift at constant speed, the applied force must equal the weight. F = mg = 5 * 9.8 = 49 N.
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