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5. (15 points) A 2500-kg car traveling at 20 m/s is chasing a second car of mass 3500 kg that is traveling at 7 m/s

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5. (15 points) A 2500-kg car traveling at 20 m/s is chasing a second car of mass 3500 kg that is traveling at 7 m/s in the same direction as the first car, both to the east. If the two cars collide and stick together, what is their speed and direction after the collision?. Is the kinetic energy conserved in this situation

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