The cart with more mass has more effect on and the cart with less mass will absorb more of thevelocity. Elastic collisions occur when there is no net loss of kinetic energy in the system because ofthe collision. Accidental crashes. Inelastic collisions are the kind of collisions when there is a loss ofkinetic energy. Kinetic energy is preserved in elastic collisions as they rebound off one another.Inelastic collisions result in the loss of kinetic energy and cling together after impact. Elasticcollisions are highly unlikely in the real world as there is almost always a change in energy