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A model rocket has a mishap in air, and it explodes apart into two pieces. The...

A model rocket has a mishap in air, and it explodes apart into two pieces. The 3.0 kg rocket was traveling at velocity <0, 9, 0> m/s just before the explosion, and the 2.0 kg piece of rocket is traveling at velocity <4, 8, 0> m/s just after the explosion. What is the velocity of the 1.0 kg piece just after the explosion?

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