I'm writing a video game. For the AI i need to be able to calculate the proper initial velocity for a given angle to hit a target a certain x,y distance away. I don't want to use time in the formula. Does any one know a formula for doing this? I found something about a "gunnery law" that looked similar to what i needed, but i couldn't find the formula. Any help would be appreciated since i'm a programmer and not much of a physics person. Thanks.