Projectile motion is the motion of an object projected upwards when an object is thrown. The motion produces 2 directional movement that is simultaneous. The 2 movements are the independent rectilinear motions namely, the uniform velocity responsible for the horizontal forward motion of the object along the X-axis and uniform acceleration that is responsible for the vertical or downwards movement of an object along the Y-axis. In projectile motion, the object is called a projectile, and its path is called its trajectory. When an object is thrown upwards at an angle to the horizontal/vertical line, it takes a parabolic path. This is called projectile motion. The only force acting on the object is the gravitational force. So a projectile motion is the combination of 2 components in the horizontal and vertical directions.
Trajectory in a projectile motion |
The time taken for the complete motion is called the time of flight and is two times the above, due to the symmetry of the motion. Considering the horizontal motion of the object, the range (R) is calculated as