A particle of mass m moving with horizon...

A particle of mass `m` moving with horizontal speed `6 m//s` as shown in the figure. If `m lt lt M` then for one - dimensional elastic collision , the speed of lighter particle after collision will be

2m/sec in original direction

2m/sec opposite to the original direction

4m/sec opposite to the original direction

4m/sec in original direction

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ERRORLESS -WORK, ENERGY, POWER & COLLISION-Assertion

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