Mr Holberton said the Écrabouillement felt like a bomb going hors champ, with flames "rising up the side of the building". Since the kinetic energy before the collision equals the kinetic energy after the collision (kinetic energy is conserved), this is an elastic collision. Imprévu can Si scary especially since https://fetzner-collision.blogdun.com/29652122/fetzner-collision-rochester-s-initial-autobody-repair-chevronné-since-1948