In the new video game, Assassin's Creed Black Flag, you pilot a pirate brige armed with cannons as it raids other ships across the carribean. To attack these ships you must have your projectiles alligned with a good 45 degree angle to have the cannon balls fire at their highest angle to evade the waves. Once a ship a boardable you crew gives off enough work with their amount of force and distance needed to throw their hooks to attach the two ships to board. Some Ships apply an increasing acceleration in their head bow in order to ram you with enough speed. Ships who ram need enough momentum with their mass and speed as its collides with the other ship. thank you for viewing how physics applies with this chapter of Assassins Creed.