Velocity at a distance x (for object following a ballistic trajectory)

Description

A trajectory or flight path is the path that a moving object follows through space as a function of time. A trajectory can be described mathematically either by the geometry of the path, or as the position of the object over time. Ballistic trajectory of a projectile is the path that a thrown or launched projectile will take under the action of gravity, neglecting all other forces, such as friction from air resistance, without propulsion. The magnitude of the velocity of the projectile at distance x is depended on the the initial velocity and the angle at which the projectile is launched.