In a direct impact, loss in kinetic energy is given by ∆K = M1M22(M1+M2). (V1-V2)2(1-k2) with usual notations (except k). The quantity k will have dimensional formula.

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M0L2T-2

MLT-1

[M0L0T0]

[M0LT-1]

answer is C.

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Detailed Solution

It is clear that[1-k2] = M0L0T0Hence, [k] = M0L0T0Actually k is the coefficient of restitution.

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