8. A car and a truck collide. The momentum of the system of car and truck will be a) conserved if the collision is elastic. b) conserved if the collision is perfectly inelastic. c) perfectly conserved if the net internal force > net external force. d) approximately conserved if Frc = FcT >> |f + D|
8. A car and a truck collide. The momentum of the system of car and truck will be a) conserved if the collision is elastic. b) conserved if the collision is perfectly inelastic. c) perfectly conserved if the net internal force > net external force. d) approximately conserved if Frc = FcT >> |f + D|
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