A ball is thrown in the air vertically from ground level with initial velocity 288 ft/s. Find the average height of the ball over the time interval extending from the time of the ball?s release to its return to ground level. The height at time t is h(t) = 288t - 16t2. Your answer must include units
A = 864m
(If you are unable to figure this problem out. you will receive a hint after 3 tries).