A mass 'm' moves with a velocity 'v' and collides inelastieally with another identical mass . After collision the `1^(st)` mass moves with velocity `v/sqrt3` in a direction perpendicular to the initial direction of motion. Find the speed of the `2^(nd)` mass after collision.
`undersetunderset ((before),(collision))(m)(*rarr) underset(m)* uparrow v//sqrt3 underset((after),(collision):)`