air gun anti-ballistic missile anti-satellite weapon arrow arrow missile arrow poison atlatl bb gun ballistics baseball blowgun bullet catapult coilgun collateral damage collision crossbow detonation early thermal weapons exoatmospheric kill vehicle falling firearm gun gunpowder hardness hypervelocity impact depth injury iraq jet engine kinetic energy interceptor kinetic bombardment kinetic energy kinetic energy penetrator light gas gun low earth orbit machine gun mass driver missile missile defense agency muzzle velocity paintball property damage railgun range of a projectile relativistic kill vehicle rifle rocket rocket engine round shot shape size slingshot space debris spaceflight spear speed tank taser terminal high altitude area defense throwing torpedo trajectory trajectory of a projectile trinitrotoluene wiktionary wire-guided missile