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Question

A force F\=−5i^+2j^N acts on a particle moving along d\=3i^+4j^m. What is the work done?

Options

Choose one · Correct answer highlighted

Explanation

Work W=F·d=Fd cosθ per NCERT Chapter 6. Positive if force along displacement. Using given F, d, θ, calculation gives -7 J. Work-energy theorem W=ΔK confirms. So option B is correct.