Projectile problems are about as much fun as projectile vomiting. Okay, I am stuck on all the same kind of problem. Something is thrown or fired horizontally. There is no air resistance. After "x" seconds, it has fallen how far? Ex: A bullet is fired horizontally from the top of a cliff. Three seconds later, the ball has fallen a vertical distance of ??? And A bullet (violent, aren't they?) is fired horizontally with an initial velocity of 300m/s from a tower 20m high. No air resistance, the horizontal distance the bullet travels before hitting the ground is ???? Is the gravitational constant coming into play again? I know the ball/bullet is falling, and it's going sideways, too. is this a d=vt problem? Do I just go back to my little table of how far things fall in free fall for how far it falls down? But what for the horizontal component? Is that the d=rt part? Thanking you in advance for any help. I'm lost again. New chapter, new confusion.