Physicsmedium · Past Paper
If a force F = 20 N is applied at an angle of 90 degrees to the displacement d = 5 m, the work done is:
A100 J
B50 J
C0 J
D200 J
✓ Correct Answer: C — 0 J
W = Fd cos(90). Since cos(90) = 0, the work done is 0 Joules.
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