A ball , moving with a speed of `10 sqrt(3) m//s` , strikes an identical stationary ball such that after the collision , the direction of each ball makes an angle of `30^(@)`with the original line of motion. The speeds of two balla after the collision are , respectively.

Options

A. `3 m s^(-1), 3 m s^(-1)`
B. `3sqrt3 ms^(-1), 3sqrt3 ms^(-1)`
C. `3sqrt3 m s^(-1), 3 m s^(-1)`
D. `3 m s^(-1), 3sqrt3 m s^(-1)`

Answer

B