13.- 5 points A 20-ton truck collides with a 1500-lb car. Which of the following statements must be true? a) During the collision, the force on the truck is greater than the force on the car. b) During the collision, the force on the truck is equal to the force on the car. c) During the collision, the force on the truck is smaller than the force on the car. d) The truck did not slow down during the collision, but the car did. e) The car did not slow down during the collision, but the truck did.