(Solved): Below is the acceleration-vs-time graph for a car moving between two traffic lights. The car takes 6 ...

Below is the acceleration-vs-time graph for a car moving between two traffic lights. The car takes 6 seconds to travel from the first traffic light to the second. What is the car's velocity when it reaches the second traffic light? (The positive direction points from the first light to the second light). it is not 15 m/s