The position of an object moving vertically along a line is given by the function s(t) = - 4.9t2 +30t + 23. Find the average velocity of the object over the following intervals. a. [0,1] b. [0.4] c. [0.5] d. [0,h], where h > 0 is a real number <:> a. The average velocity is |:. (Simplify your answer.) b. The average velocity is |:. (Simplify your answer.) c. The average velocity is |:. (Simplify your answer.) d. The average velocity is |