The gun on a battleship is at the surface of the water, and fires a 500 kg projectile with a muzzle velocity of 400 m/sec
a) What is the maximum range?
b) what is the maximum height of the projectile when it is fired for maximum range?
c) Suppose there is a submarine (on the surface) 8 km away. What angle should the gun be fired at to hit the submarine?
d) Is there more than one angle at which the gun can be fired to hit the sub? If so, what is it?