Light-rail passenger trains that provide transportation within and between cities are capable of modest accelerations. The magnitude of the maximum...

Light-rail passenger trains that provide transportation within and between cities are capable of modest accelerations. The magnitude of the maximum acceleration is typically 1.3 m/s^2, but the driver will usually maintain a constant acceleration that is less than the maximum. A train travels through a congested part of town at 7.0 m/s. Once free of this area, it speeds up to 12 m/s in 8.0 s. At the edge of town, the driver again accelerates, with the same acceleration, for another 16 s to reach a higher cruising speed.