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A similar experiment is performed. This time the carts are both at rest with a compressed spring between them. The carts are held together with a string which is then cut. After the carts separate, cart A has velocity 0.4 m/s to the left (negative). A B5. What is the initial momentum of the system? A. -04 kg-m/s B. 0.0 kg-m/s C. 0.4 kg-m's D. 0.8 kg-m/'s 6. What is the final momentum of the system? A. -0.4 kg-m/s B. 0.0 kg-m/s C. 0.4 kg-m/'s D. 0.8 kg-m/'s 7. What is the velocity of cart B after the string is cut? A. -0.2 mis B. 0.0 m/'s C. +0.2 m/s D. +0.4 m/s What is the Kinetic Energy of Cart A after the collision? A. 0J B. .04 J C. 0.08 J D. 0.12 J 9. What is the Kinetic Energy of Cart B after the collision? A. 0J B. 0.04 J C. 0.08 J D. 0.12 J 10. How much Potential Energy was stored in the spring? A. 0J B. 0.04 J C. 0.08 J D. 0.12 J 11. What is the force of the spring acting on cart A compared to the force on cart B during the process? A. the same B. half as much C. twice as much D. four times as much