A KTM commuter train travels between two stations, A and B. The train starts from rest from station A and accelerates at a constant rate for 0.5 km until it reaches a speed of 30 mfs. It then travels at this constant speed for T s before decelerating at a constant rate of 1.5 mfs2 and coming to rest at station B. Figure 1 shows the velocity-time graph of the train's journey between the two stations. Determine the value of Tif the distance between the two stations 6 km. Calculate also the total time taken for the whole journey. r[ms"} 30 Figure 1