a 10000 kg truck collides with a 4000 kg car. which of the following statements must be true? a) the truck did not slow down during the collision, but the car did. 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 greater then the force on the car. d) during the collision, the force on the truck is smaller than the force on the car. e) the car did not slow down during the collision, but the truck did.