The acceleration of a bus is given by ax(t) = at, where a 1.5 m/s (a) If the bus's velocity at time t 1.5 s is 5.1 m/s, what is itarvelocity at time t = 2.5 s? m/s (b) If the bus's position at time t = 1.5 s is 6.2 m, what is its position at time t = 2.5 s? m (c) Sketch ax-t, vx - t, and x-t graphs for the motion. (Do this on paper. Your instructor may ask you to turn in these graphs.)