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Two spheres A and B of masses m1 and m2 ...

Two spheres A and B of masses `m_1` and `m_2` respectively collide . A is at rest initially and B is moving with v velocity along x-axis . After collision B has a velocity `v/2` in a direction perpendicular to the original direction . The mass A moves after collision in the direction.

A

opposite to that of B

B

`theta = tan^(-1)1/2` to x-axis

C

`theta = tan^(-1) to x-axis

D

same as that of B

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