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Two bodies of masses m(1) and m(2) are m...

Two bodies of masses `m_(1)` and `m_(2)` are moving with velocities `1ms^(-1)` and `3ms^(-1)` respectively in opposite directions. If the bodies undergo one dimensional elastic collision, the body of mass `m_(1)` comes to rest .Find the ratio of `m_(1)` and `m_(2)`.

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