A ball of mass m moving with velocity V, makes a head on elastic collision with a ball of the same mass moving with velocity 2V towards it. Taking direction of V as positive velocities of the two balls after collision are
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Verified by ExpertsThe correct answer is:
D
Initial velocities of balls are +V and – 2V respectively and we know that for given condition velocities get interchanged after collision. So the velocities of two balls after collision are – 2V and V respectively.
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