A billiard ball moving at a speed 2m/s strikes an identical ball initially at rest, at a glancing blow. After the collision one ball is found to be moving at a speed of 1m/s at `60^(@)` with the original line of motion. The velocity of the other ball shall be -

Options

A. `(3)^(1/2)m//s at 30^(@)` to the original direction.
B. `1m//s at 60^(@)` to the original direction
C. `(3)^(1//2)m//s at 60^(@)` to the original direction
D. `1m//s at 30^(@)` to the original direction

Answer

A