Answer :
-- Gravity slows the ball by 9.8 m/s every second. So it slows to zero and reached its highest point in
(58.8 / 9.8) = 6 seconds .
-- Its average speed all the way up is
(1/2) (58.8 + 0) = 29.4 m/s
-- Traveling for 6 seconds at an average speed of 29.4 m/s, the ball covers
(6) (29.4) = 176.4 meters .