For a particle moving along a straight line under a varying force F(x), the work done from x = a to x = b is:
AF(b)−F(a)
BF(a)·(b−a)
CF(b)·(b−a)
D∫_a^b F(x) dx
Answer & Solution
Correct answer: D. ∫_a^b F(x) dx
Work = area under F–x curve.
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