Heard a guy on the radio (during the chaos of Arafat's funereal) talking about all the shooting up in the air and where all those bullets go and how dangerous they are. He said that according to the law of conservation of energy the bullet would be traveling the same speed when it hit the ground or whatever that it was traveling at when it left the muzzle. If this was true, a bullet would travel forever in a straight line, as long as nothing got in the way, right? Impossible, right? Say a bullet is fired perfectly straight up. It stops at the "top" and falls back to earth. At what speed will it be traveling when it strikes the ground?