1. The problem statement, all variables and given/known data 2 cars collide at an intersection. one car which has a mass of 1,400kg has a velocity of 45 km/h; the other car has a mass of 1,300kg and has a velocity of 39 km/h[E] The cars has an inelastic collision. What are their velocity after the collision 2. Relevant equations Conservation of momentum: P total = P total prime 3. The attempt at a solution I have tried on numerous occasions but have not achieved the correct answer. The correct answer should be: "30 km/h [ 51 South of East.] I got the correct magnitude of the velocity which is 30 km/h. Easy enough, but i didn't get the degrees required. Additional vector diagram is appreciated.