The following graph shows the position as a function of time for a particle moving along the x-axis. 15 10 * (m) 5 10 5 t (s) The average acceleration of the particle between t = 1.0 s and t = 9.0s is: a) 0.25 m/s2 b) 0.0 m/s2 O cl 0.066 m/5 2 O d) 1.1 m/52 e) 0.14 m/s2