King Arthur's knights fire a cannon from the top of the castle wall. The cannonball is fired at a speed of 60m/s and an angle of 33. A cannonball that was accidentally dropped from the top of the castle wall hit the moat below in 1.8s.
(a) How tall is the top of the castle wall?
(b) How long is the fired cannonball in the air?
(c) How far from the castle wall does the fired cannonball hit the ground?
(d) What is the fired ball's maximum height above the ground?