A car moving at a constant speed of 15m/s2 passes a stationary car. Immediately the driver of the second car accelerated uniformly at 2m/s2 for 8.4 seconds and then maintains it's speed untill it catches up with the first car
1. Sketch the velocity time graph of the motion of the two cars on the same sheet
2. Calculate the time taken for the second car to catch up with the first one