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March 27, 2015

Homework Help: physics

Posted by michelle- plz help me!! on Friday, December 21, 2007 at 12:37pm.

A bullet with a mass of 5.00* 10^ -3 kg is loaded into a gun. The loaded gun has a mass of .52 kg. The bullet is fired, causing the empty gun to recoil at a speed of 2.1 m/s. What is the speed of the bullet?

ok i worked it out and get 218.4 but that answer does not appear in the answer choices! did i do something wrong or is the teacher wrong??
plz plz plz help!!

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