2 A car starts moving from rest at a traffic light. It accelerates at 4.0 m/s for 6.0 s. It then travels at constant speed for 20 seconds, and then slows down at a rate of 3.0 r /s to stop at the next traffic light. How far apart are the traffic lights? Select one: a. 920 m b. 650 m C 320 m d. 740 m