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’* 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.
If the level of landing surface is more than projection height the angle shall be increased i.e. should be more than 45o.So thing are cover a maximum distance.
If the level of Landing surface is less than projection height the angle of projection should be decreased. I.e. should be less the 45o. The things are cover maximum distance. So the distance of horizontal depends upon the relevancy of projection height and landing surface.
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.
Gravity:- It is the force of attraction exerted by the earth towards the object’*. A Leaner object, if projected will have longer elivation in companison to a light weight object with the same force. Gravity affects a projectile as it decreases the height of the force of gravity acts on the object to stop its upward movement and pulls it back to earth. Limiting vertical component of the projectile.
Air Resistance:- When a projectile moves through the air, it is slow down by air resistance, Air resistance decrease the h o r i z o n t a l component of projectile. The effect of air resistance is very small but it increase the horizontel component of air resistance acting on a projectile mass surface of the object. Following factors - Surface of the object volume, mass & speed related to the amount of air resistance of a projectile.
Spin:- The amount and direction of spin acting on a projectile will directly effect the distance travelled or covered by a projectile. The main reason behind this fact is the air pressure acting on the object.
