Question

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
A. `-0.3 ms^(-1) & 0.5ms^(-1)`
B. `+0.5 ms^(-1) & +0.3ms^(-1)`
C. `-0.4 ms^(-1) & 0.3ms^(-1)`
D. `0.3 ms^(-1) & -0.4ms^(-1)`

Answer 1

Correct Answer - A
In elastic collision of bodies of same mass, the velocities get mutually exchanged between them.