Question

3. (10 pts) (I) Suppose s (t) is the position of an object moving along a line at time t 20. What is the average velocity between the times t = a and t = b? (b)-s) b-9 Vav = (II) The table gives the positions (t) of an object moving along a line at time t, over a three- second interval. Find the average velocity of the object over the interval [1, 3]. t 0 1 1.2 1.5 2 2.5 3 s (t) 0 22 32 48 60 68 72 Vav =