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At a county fair, two children ram each other head on while riding on the bumper...

At a county fair, two children ram each other head on while riding on the bumper car attraction. Jill and her car, traveling left at 3.50 m/s, have a total mass of 325 kg. Jack and his car, traveling to the right at 2.00 m/s, have a total mass of 290 kg. Assuming the collision to be elastic, determine their velocities after the collision.

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