A block of mass 2 kg is pushed towards a very heavy object moving with 2 m/s closer to the block (as shown). Assuming elastic collision and frictionless surface, find the final velocities of the blocks.

Explanation

Let `v_(1)` and `v_(2)` be the final velocities of 2kg block and heavy object respectively then
`v_(1)=u_(1)+1(u_(1)-u_(2))=2u_(1)-u_(2)`
`-14m//s`

`v_(2)=-2m//s`