1. The graph below represents the velocity of an object as a function of time, that's moving in one dimension. Sketch the acceleration as a function of time, then calculate (a) the displacement, (b) the average velocity, (c) the distance traveled, and (d) the average speed, over the interval from t = 0 to t = 8 s. Velocity (m/s) 1.5 1 0.5 -0.5 -1 -1.5 0 1 2 MA 43 Time (s) 6 8 9