An initially motionless test car is accelerated uniformly to 120 km/h in 7.98 s before striking a simulated deer. The car is in contact with the faux fawn for 0.515 s, after which the car is measured to be traveling at 76.5 km/h. What was the magnitude a before of the acceleration of the car before the collision? What is the magnitude davg,col of the average acceleration of the car during the collision? What is the magnitude of the average acceleration aavg,test of the car during the entire test, from when the car first begins moving until the collision is over? abefore= 4.18 m/s -23.47 aavg,col m/s Incorrect = 2.501 avg,test m/s