A mass m moves with a velocity v and collides inelastically with another identical mass. After collision the first mass moves ….

Q: A mass m moves with a velocity v and collides inelastically with another identical mass. After collision the first mass moves with velocity v√3 in a direction perpendicular to the initial direction of motion. Find the speed of the 2nd mass after collision

(a) $\displaystyle\frac{2}{\sqrt{3}} v$

(b) $\displaystyle \frac{v}{\sqrt{3} }$

(c) v

(d) √3 v

Ans: (a)