A spherical ball A of mass 4 kg, moving ...

A spherical ball A of mass 4 kg, moving along a straight line strikes another spherical ball B of mass 1 kg at rest. After the collision, A and B move with velocities `v_1 m s^(-1) and v_2 m s^(-1)` respectively making angles of `30^@ and 60^@` with respect to the original direction of motion of A. The ratio `v_1/v_2` will be

`(sqrt3)/(4)`

`(4)/(sqrt3)`

`(1)/(sqrt3)`

`sqrt3`

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