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Wednesday, 14 January 2015

Projectile Motion

Projectile

An object on which the one and only force acting on object is gravity is called projectile.

Example

Object dropped downward from the rest the motion of object is called projectile, (the air resistance is negligible).

An object thrown upward from rest the motion of object is called projectile (the air resistance is negligible). And an object which is thrown upward at horizontal angle the motion of object is also called projectile (the air resistance is negligible).

According to the law, a projectile is a single force that acts upon an object (the force of gravity). If there were other force acting on an object, then the object would not be a projectile.
Thus, a projectile is any object upon which the only force is gravity.