Trolley X, travelling on a horizontal frictionless track, collides with stationary trolley Y. The two trolleys stick together and then continue moving as one. Which statement concerning this interaction is correct?
- ASome of the kinetic energy of trolley X is changed to momentum in the collision.
- BSome of the momentum of trolley X is changed to kinetic energy in the collision.
- CTrolley X loses some of its momentum as heat in the collision.
- DTrolley X shares its momentum with trolley Y but some of its kinetic energy is lost.