A student wants to determine the final velocity of car that is accelerating during a drag race (a race along a straight stretch of road). The student knows the acceleration of the car and
the length of the track. What else would they need to know to solve for the final velocity?

A980-kg sports car collides into the rear end of a 2300-kg suv stopped at a red light. the bumpers lock, the brakes are locked, and the two cars skid forward 2.6m before stopping.the police officer, estimating the coefficient of kinetic friction between tires and road to be 0.80, calculates the speed of the sports car at impact. what was that speed?