The MRT train takes 30 minutes to travel from EDSA-Pasay Station to Shaw Boulevard Station. The train accelerates from rest at a rate of 0.5 meters per second squared for 60 seconds. It then travels at a constant speed before it is brought to rest in 6 minutes with a constant deceleration. The motion is modeled as a linear motion on a straight railway track. Sketch the velocity-time graph for the journey