1. The problem statement, all variables and given/known data A bullet of mass 0.21 kg is fired from a gun of mass 5.6 kg. If the guns recoil speed is 2.5 m/s, what speed must the bullet have as it leaves the gun? 2. Relevant equations m1V2 + m2v2ii = m1v1i + m2v2i m1 = gun, m2 = bullett 3. The attempt at a solution So, The terms on the right side drop out. m1V2 + m2v2ii = m1v1i + m2v2i m1V2 + m2v2ii = 0 m1V2 = -m2v2ii divide by m2 m1V2/-m2 = v2ii (5.6 kg x 2.5 m/s) / (0.21 kg) -66.6 Since it asks for speed 66.6 m/s Is this correct I don't have a solution guide thanks.