Two cars collide at an intersection. The first car has a mass of 925kg and was travelling north. The second car has a mass of 1075kg and was travelling west. Immediatly after impact, the first car had a velocity of 52km/hr, 310deg, and the second car had a velocity of 40km/hr, 320deg. What was the speed of each car prior to the collision? Ok. Is there a velocity formula I can use? One In terms ov V and M?