2. (15 pts) Use the following data to find the velocity and acceleration at t = 3, 7, 12, 18 and 20 seconds using a. forward finite difference b. backward finite difference c. central finite difference Time t, 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 (s) Position 0.0 0.2 0.5 1.0 1.6 |2.4 3.3 4.1 5.1 5.8 6.3 6.6 7.3 7.6 8.0 8.2 8.4 8.6 8.8 8.9 9.0 x, (m) Hint: it is not intended that you do these by hand