A 10.0 kg cart and a 15kg cart are locked together with a compressed spring between them. They are then released so that the spring pushes the two carts apart. The 15kg cart is moving at 3.0 m/s afterward. How fast is the 10.0 kg cart moving? A. 4.5 m/s B. 2 m/s C. 3 m/s D. 5 m/s

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