Two carts on a frictionless horizontal air track collide and stick together. Which of the following statements is true? A. The total momentum of the two carts is the same before and after the collision and the total kinetic energy is greater after the collision. B. The total kinetic energy of the two carts is the same before and after the collision and the total momentum is lower after the collision. C. The total momentum of the two carts is the same before and after the collision and the total kinetic energy of the two carts is lower after the collision. D. There is not enough information provided to determine if any of the statements are true. E. The total momentum of the two carts is the same before and after the collision and the total kinetic energy of the two carts is the same before and after the collision.
