1. A bus starts from rest at point A and accelerates at the rate of 0.8 m/s^2 unit it reaches a speed of 12 m/s. Its then proceeds at 12 m/s until the breaks are applied; it comes to rest at point B, 42 m beyond the point where the breaks were applied. Assuming uniform deceleration and knowing that the distance between A and B is 300 m, determine the time required for the bus to travel from A to B