The cannonball is fired at a speed of 52 m/s and at an angle of 28°. A second cannonball that was accidentally dropped hits the moat below in 1.6 s.
(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?