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A 120 g ball moving to the right at 4.2 m/s catches up and collides with a 450 g ball that is moving to the right at 1.2 m/s. If the collision is perfectly elastic, what are the speed and direction of each ball after the collision?
15 years ago

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Ned Donaldson
.12(v1)+.42(v1+3)=
11 years ago

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