A stationary car is stopped at a traffic light. When the light turns green at t=0t=0t, equals, 0, a truck with constant speed passes the car. The car uniformly accelerates to its top speed in 15\, \text{s},15s,15, start text, s, end text, comma then moves at a constant speed. The truck is represented by the dotted line and the car is represented by the solid line.