projectile motion and parallelogram of forces

define projectile motion

The movement of a body through the air following a

curved flight path under the force of gravity

what is a projectile

a body that is launched into the air losing contact with the ground surface, and subject to weight and air resistance forces.

what are the 4 factors that affect horizontal distance travelled by a projectile

Speed of release

Angle of release

Height of release

Aerodynamic factors

what is the optimum angle of release for horizontal distance 

45 degrees

how does height of release affect angle of release

if the height of projectile release is higher or lower than the landing

height, the optimal angle of release will change.

what is a parabolic flight path

symmetrical shape about the height point of an objects flight path

when does a parabolic flight path occur

If weight is the dominant force and air resistance is very small

what is a non parabolic flight path

an asymmetrical shape around a projectiles highest point in its flight path

when does a non parabolic flight path occur

If air resistance is the dominant force and weight is very small

what is an example of a parabolic flight path 

a shot

what is an example of a non parabolic flight path 

discus 

shuttle cock 

when is the resultant force air resistance in a parallelogram of forces

If the resultant force is closer to the air resistance arrow

when is the resultant force weight in a parallelogram of forces

If the resultant force is closer to the weight arrow