For the following exercises the position function of a ball dropped from the top of a 200 meter tall building is given by s t 200 4 9t where position s is measured in meters and time t is measured in seconds Round your answer to eight significant digits 16 T Compute the average velocity of the ball over the given time intervals a 4 99 5 b 5 5 01 c 4 999 5 d 5 5 001 17 Use the preceding exercise to guess the instantaneous velocity of the ball at t 5 sec