Question

Two identical balls A and B having velocities of `0.5 ms^(-1) and -0.3 ms^(-1)` respectively, collide elastically in one dimension. The velocities of B and A after the collision respectively will be

Options:
(a) `-0.5 ms^(-1) and 0.3 ms^(-1)` (b) `0.5 m'/'s^(-1) and -0.3ms^(-1)`
(c) `-0.3 ms^(-1) and 0.5 ms^(-1)` (d) `0.3 ms^(-1) and 0.5 ms^(-1)`