Q

A force of 20 N acts opposite to the displacement of 5 m. What is the work done by the force?

RRB Group D 25 Aug, 2026 (9:00 AM - 10:30 AM) 2026
✓ Answer: D –100 J
Work W = Fs cosθ. The force is opposite to displacement, so θ = 180°, giving W = 20×5×(−1) = −100 J.
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