A ball A collides elastically with another identical ball B with a velocity of 10 ms^-1 making an angle of 30° with the line joining their centres C₁ and C₂. Select the correct statement(s).

Velocity components in common tangent direction will remain unchanged while velocity components in common normal direction are interchanged in case of an elastic collision. Hence, both A and B move at right angles after collision with ${\mathrm{v}}_{\mathrm{A}}=5{\mathrm{ms}}^{-1}$ and ${\mathrm{v}}_{\mathrm{B}}=5\sqrt{3}{\mathrm{ms}}^{-1}$. Kinetic energy is conserved in an elastic collision, whether it is a head on or an oblique collision.