Two balls with masses in the ratio of 1:2 moving in opposite direction have a head-on elastic collision. If their velocities bef

Two balls with masses in the ratio of 1:2 moving in opposite direction have a head-on elastic collision. If their velocities before impact were in the ration of 3:1, then velocities after impact will have the ratio :
A. `5 :3`
B. `7:5`
C. `4:5`
D. `2:3`

Two balls with masses in the ratio of 1:2 moving in opposite direction have a head-on elastic collision. If their velocities before impact were in the

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