The recoil energy associated with an AKM rifle is 7.19 J. Such that:
Velocity of firearm: Vf = (7.9 * 710 + 1.55 * 1119) / (3.75 * 1000) = 1.96 m/s. Therefore, the energy is: Er = 0.5 * 3.75 * 1.95² = 7.19 J. Read more