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A body is moving under the expense of a constant power. If 'X' is the displacement in time 't', then 'x' is proportional to

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detailed solution

Correct option is B

P=Fv=mdvdtv⇒vdv=Pmdt ∫vdv=∫Pmdt⇒v=2Ptmdsdt=2Ptmor, ds=2Ptmdt s=∫0t2Ptmdts∞t3 2

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