Projectile motion

Question 1

what is projectile motion with sporting examples

Answer 1

also known as horizontal displacement: describes the movement of any objects when travelling through the air

examples:
- penalty football kick
- long jumper jumping into sand
- lacrosse shot/pass
- golf shot

Question 2

what 3 factors affect projectile motion

Answer 2

1. speed of release
   the greater the force applied through projectile, the further it will travel (newtons 2nd law)
2. angle of release
   releasing the projectile at an angle of 45* is considered to be the optimal release angle, resulting to a greater distance achieved
3. height of release
   a ball that is released at a higher point will be more likely to travel further in the air, if the correct optimal angle of release is applied

Question 3

free body diagrams

Answer 3

a free body diagram demonstrates the impact that air resistance and weight have on a projectile during flight

the arrows of resultant forces weight and air resistance form a parallelogram on projectile which indicate which force will have a greater impact on objects flight path

Question 4

vector components of parabolic flight

Answer 4

[ air resistance is minimal therefore remains constant throughout all of flight ]

1. beginning of flight
   large vertical component, generated from muscular force by athlete
2. middle of flight
   no vertical arrow at the top as gravity is equal to mass
3. end of flight
   gravity is much greater than mass and continues to increase vertical arrow