bdnohnumb1
New member
A 920 kg sports car collides into the rear end of a 2300 kg SUV stopped at a red light. The bumpers lock, and the two cars skid 2.80m before coming to rest. Knowing that the coefficient of kinetic friction between the tires and the road is 0.80, the police officer on the scene determines the speed of the sports car prior to impact. How fast was the sports car going?