Jessica says, "In an elastic collision the kinetic energy of the objects is conserved so that the total kinetic energy before the collision is the same as it is after the collision. Don't you agree, Josh?" Josh says, "Yes, I agree, but for an inelastic collision, momentum is not necessarily conserved and a heavier object will have a smaller change in momentum than a lighter object. If the masses are equal," he argues, "the momentum will be conserved in an inelastic collision."Who is right?a. Jessicab. Joshc. Bothd. None of them