What is projectile? Explain the factor …

An object thrown into the space either horizontally or an acute angle under the action of gravity is called a projectile. There are force which act on a projectile-gravitational force and air two resistance. Air resistance of an object varies greatly and it depends on the object’s particular shape and the atmoshperic conditions in which the object is released. Trajectile - The path followed by a projectile. 

The factor affecting Projectile Trajectory are mentioned below.
1. Angle of projection:- An object which is projected at different angles covers different distance. When it is projected or released at angle of 25O, making it a parabolic path and coves lesser distance. When it is released at angle of 42O & 45O, makes a parabolic path and covers. Maximum distance. So the distance covered by an object (Shot Put, Hammer, Javelin, Discus etc. depends on the
2. Projection height relevant to the landing surface:-  If the projection height and landing surface are equal the thing should be release/thrown at an angle of 42o to 45o it cover maximum distance.
3. Initial velocity:- The distance covered by on object depends on the initial velocity of the projectile. If the initial velocity is more, the object covers maximum distance. And if the initial velocity is less the object covers less distance.