A cart with a spring plunger runs into a fixed barrier. The mass of the cart, its velocity just before impact with the barrier, and its velocity right after collision are given in each figure. (All velocities before the collision are given as positive since the cart is moving to the right. After the collision the cart is either moving to the left, indicated with a negative velocity, or is at rest.) A B Before After Before After 10 kg 10 kg 10 kg 10 kg D Vo=4 m/s vy =0 Vo=3 m/s vy = -1 m/s C D Before After Before After 20 kg 20 kg 5 kg p 5 kg Vo= 1 m/s vy=-1 m/s Rank the change in kinetic energy for each cart. Vo= 5 m/s vy=-3 m/s OR 2 3 4 Greatest Least All the same All zero Cannot determine Explain your reasoning.