Dynamics Problem 4.17 involving momentum and relative velocity complete explanation worked out in detail.

Two projectiles, each with a mass of 10 kg, are fired simultaneously from the 1-Mg vehicle shown, which is moving with an initial velocity v_1= 1.2 m/s in the direction opposite to the firing. Each projectile has a muzzle velocity v_r= 1200 m/s relative to the barrel. Calculate the velocity v_2 of the vehicle after the projectiles have been fired.


Engineering Mechanics: Dynamics 6th Edition
by J. L. Meriam, L. G. Kraige