phys

posted by gg

A 5g bullet is fired from a 5000g gun. If the bullet leaves the gun going +800m/s, with what speed does the gun recoil?

1. Carrie

-.8m/s

2. Crazey Juggalo

Speed of recoil of the gun = change in momentum/mass of the bullet
= 5 x 10-3 x 800/5 msec-1 = 0.8 msec-1

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