Example Two stalkers collided and embraced in a completely inelastic collision, i.e., they stick together after collision. A whose mass MA= 90 kg is originally moving East with a speed VA= 7 km/hr and B whose mass Me= 60 kg is originally moving north with speed VB = 7 km/hr. (a) What is the combined velocity after the impact? (b) What is the combined velocity after impact? (c) What is the fractional change in kinetic energy of the stalkers as a result of the collision