In many sports, the propelling forces are provided by muscles that accelerate the projectile (ball, disc, javelin, hammer, dart), and the stronger the propelling force, the faster. A projectile is a body which is launched into the air and. Police were equipped with tasers and 40mm.
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Feet per second is the unit of measurement used to express the speed of a projectile. A bullet is a projectile propelled by a gun.
