A 791-kg car stopped at an intersection is rear-ended by a 1820-kg truck...

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ScottMurray

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...moving with a speed of 17.5 m/s.? A 791-kg car stopped at an intersection is rear-ended by a 1820-kg truck moving with a speed of 17.5 m/s. If the car was in neutral and its brakes were off, so that the collision is approximately elastic, find the final speed of both vehicles after the collision.

Please help :) Asap
 
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