A ball is thrown vertically upward with a speed of 12.0 m/s.
(a) How high does it rise?
________m
(b) How long does it take to reach its highest point?
________s
(c) How long does the ball take to hit the ground after it reaches its highest point?
________s
(d) What is its velocity when it returns to the level from which it started?
________m/s