Two identiacal balls A and B having velocities of 0.5 m/s and `0.3" m"//"s"` respectively collide elastically in one dimension. The velocities of B and A after the collision respectively will be

Two identical balls A and B having velocity of 0.5 m//s and -0.3 m//s respectively collide elastically in one dimension. The velocities of B and A after the collision respectively will be

Two equal masses m_1 and m_2 moving along the same straight line with velocites +3 m//s and - 5 m//s respectively collide elastically. Their velocities after the collision will be respectively.

Two identical balls A and B collide head on elastically. If velocities of A and B, before the collision are +0.5 m/s and -0.3 m/s respectively, then their velocities, after the collision, are respectively

Two perfectly elastic particles A and B of equal masses travelling along a line joining them with velocities 15 m//s and 10m//s respectively collide. Their velocities after the elastic collision will be (in m/s) respectively