A 55-kg lead ball is dropped from the leaning tower of Pisa. The tower is 55 m high.
(a) How far does the ball fall in the first 3.0 s of flight?
(b) What is the speed of the ball after it has traveled 2.5 m downward?
(c) What is the speed of the ball 3.0 s after it is released?
(d) If the ball is thrown vertically upward from the top of the tower with an initial speed of 4.80 m/s, where will it be after 2.42 s?