A police officer is investigating the scene of an accident where two cars collided at an intersection. One car with a mass of 1135 kg moving west had collided with a 1300 kg car moving north. The two cars, stuck together, skid at an angle of 30° north of west for a distance of 25 m. The coefficient of kinetic friction between the tires and the road is 0.80. What was the speed of the lighter car? ______ km/h What was the speed of the heavier car? ______ km/h I know this is a perfectly inelastic collistion and that Vf will be equal. so x-dir m1vi1 = (m1 + m2) Vf cos 30 y-dir m2vi2 = (m1 + m2) Vf sin 30 so i can't solve too many unknowns. How do i use the 25m and kinetic friction??