You are called as an expert witness to analyze the following auto accident: Car B, of mass 2100 kg, was stopped at a red light when it was hit from What was the speed of car A just before the collision? behind by car A, of mass 1300 kg. The cars Express your answer in kilometers per hour. locked bumpers during the collision and slid to a stop. Measurements of the skid marks left by the tires showed them to be 7.20 m long, and inspection of the tire tread revealed that the AEd O ? coefficient of kinetic friction between the tires and the road was 0.65. U= km/hBy how many km/h was car A exceeding the speed limit 60 km/h? Express your answer in kilometers per hour. AEd ? Av= km/h