Crey | A particle of mass m moving with horizontal speed 6 m/sec. If m<<M then for one dimensional elastic collision, the speed of lighter particle after collision will be 2 m/sec in original direction, 2 m/sec opposite to the original direction, 4 m/sec opposite to the original direction , 4 m/sec in the original direction

Question

A particle of mass m moving with horizontal speed 6 m/sec. If m<

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