Class 16.pdf

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If the forces between the bodies are conservative, so that no mechanical energy is lost or gained in the collision, the total kinetic energy of the system is the same after the collision as before. Such a collision is called an elastic collision. A collision in which the total kinetic energy after the collision is less than before the collision is called an inelastic collision . An inelastic collision in which the colliding bodies stick together and move as one body after the collision is called as a completely(or perfectly) inelastic collision. In this case, the energy loss is maximum Collisions Class 16 Page 1
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Is momentum of the system conserved in inelastic collisions? No. Some kinetic energy is lost, A) therefore some momentum must be lost too Yes, if total work done by non-conservative forces is zero
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