Let's compare speeds Compare the final speeds of the carts in these two situations. In the first, we have a cart of mass 2M, with a spring compressed up against the wall; release the cart and the | spring pushes it away from the wall. (The wall doesn't move) In the second, we have two carts, each of mass M, with an identical spring, compressed as before. Release these carts, and the spring pushes them apart. A. Each cart in (II) moves with the same speed as the cart in (I). || B. Each cart in (II) moves with half the speed of the cart in (I). C. Each cart in (II) moves at a speed greater than the speed of the cart in (I). D. Each cart moves with a speed greater than half the speed of the cart in (I), but less than the same speed. E. One cart in (II) moves with the same speed as the cart in (I), and the other does not