A mass '$$m$$' moves with a velocity $$v$$ and collides inelastically with another identical mass. After collision the $$1^{st}$$ mass moves with velocity $$v/\sqrt{3}$$ in a direction perpendicular to the initial direction of motion. Find the speed of the $$2^{nd}$$ mass after collision

A

$$v$$

B

$$\sqrt{3}v$$

C

$$2v/\sqrt{3}$$

D

$$v/\sqrt{3}$$