Elastic and inelastic collision

[wasi-uz-zaman]

Hi Experts
two cars collide on road - it cannot be elastic collision but will it be a inelastic? and does in real life we can have elastic and inelastic collision.

 

[JHamm]

Cars are built with crumple zones so when they collide the collision will take a longer time, this also acts to make the collision inelastic.
2 atoms bouncing off each other is a fairly elastic collision.