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Two bumper cars in the amusement park ride collide elastically as one approach the other directly from the rear. Car A consists of a mass of 450 kg and car B 550kg, owing to differences in passenger mass. When car A approaches at 4.50m/s and car B is moving at 3.70m/s, compute (i) their velocities subsequent to the collision, and (ii) the change in momentum of each.

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