Hello, Pls I need help with these two questions.. (with explanation)

Thank you..

Question 1: A ball on a pool table bounces off the rail (side), as shown in Figure 5. The ball is in contact with the rail for 3.2 ms. Determine the average acceleration of the ball. F A 8.2 m/s 8.2 m/s 25 -125 Figure 5 Questions 2: An airplane flies 1512.0 km [W 19.30 N] from Toronto to Winnipeg, continues 571.0 km [W 4.350 N] from Winnipeg to Regina, and then changes direction again and flies 253.1 km [W 39.390 N] from Regina to Saskatoon. Determine the total displacement of the plane. TA