If a constant force acts on an object producing a displacement

PHYSICS · Single correct · A Level · Physics · Mechanics and materials · Mechanics and materials

Problem

If a constant force F⃗\vec F acts on an object producing a displacement d⃗\vec d, which one of the following expressions represents the work done? (a) ∣F⃗∣ ∣d⃗∣|\vec F|\,|\vec d| (b) F⃗⋅d⃗∣d⃗∣\displaystyle\frac{\vec F\cdot\vec d}{|\vec d|} (c) F⃗⋅d⃗\vec F\cdot\vec d (d) ∣F⃗∣ ∣d⃗∣sin⁡θ|\vec F|\,|\vec d|\sin\theta

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