Projectile Motion. Do not try this at home!. Projectile Motion. Figure 4-16 shows a pirate ship, moored 560 m from a fort defending the harbor entrance of an island. The harbor defense cannon, located at sea level, has a muzzle velocity of 82m/s.
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Do not try this at home!
(a) To what angle must the cannon be elevated to hit the pirate ship?
(b)What are the times of flight for the two elevation angles calculated above?
(c) How far the pirate ship be from the fort if it is to be beyond range of the cannon?
The range R is the horizontal
distance the Projectile has traveled
when it returns to its launch height
The horizontal motion and the vertical
motion are independent of each other.
of the projectile’s initial velocity remains unchanged throughout the motion, as demonstrated in the following figure: