Another video that explains the law of conservation of momentum very well.
http://in.youtube.com/watch?v=T9lehHxv-C8Points to note:
1. Some kinetic energy is lost in an inelastic collision. The lost kinetic energy is transformed in the form of heat, or in work performed in deforming the colliding bodies.
2. Elastic collision is one where no kinetic energy is lost, and the colliding objects will have different speeds after the collision. Example - could be two billiards balls colliding.
3. Total momentum is conserved in both elastic and inelastic collisions.
Elcues Team
