Practice Using the graph, determine each of the following. (a) the average velocity for the first 2.5 s (b) the average velocity for the interval 2.5 to 7.5 s (c) the instantaneous velocity at the points A, B, and C (d) the times at which the instantaneous velocity is approximately zero d(m) 3 2 A C B 0 + (s ) 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 -2 - 3