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Bumper car A (281 kg) moving +2.82 m/s makes an elastic collision with bumper car B (209 kg) moving +1.72 m/s. What is the velocity of car B after the collision? HELP ASAP!!

Bumper car A (281 kg) moving +2.82 m/s makes an elastic collision with bumper car-example-1

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See attached. I have no clue as to why this answer is getting flagged for inappropriate words or links...

Bumper car A (281 kg) moving +2.82 m/s makes an elastic collision with bumper car-example-1
User Bianca Tesila
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