1. Projectile Motion EXAMPLE
Projectile motion can be defined as that motion an object has when the acceleration is constant.
EXAMPLE
A ball is thrown up into the air.
Parabolic path
Press
The acceleration due to gravity is ALWAYS the same vector, downwards.

2. Projectile Motion vv v vh
Projectile motion can be modelled as two velocity vectors, a horizontal one that does not change and a vertical one that undergoes constant acceleration. vv v
When an object is thrown/fired it has a velocity vector, v.
This vector can be shown to be the sum of two vectors, vv & vh. vh

3. Projectile Motion

4. Projectile Motion

5. Projectile Motion Once a difficult problem for artillerymen.
If the vertical and horizontal components are separated, the problem becomes simple.

6. Projectile Motion
Horizontal – simple as a ball rolling across the table
Use equations like d = v x t

7. Projectile Motion Vertical – simple as a free falling gravity problem
Use acceleration equation
A = V/T

8. Projectile Motion
NOTE:
Air and other resistance is being ignored for the time being.

9. Projectile Motion

10. Projectile Motion

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13. Projectile Motion

14. Projectile Motion

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16. Projectile Motion

17. Projectile Motion Trajectory
Up to a 45 degree angle – greater distance at greater angle
After 45 degree – greater height, less distance
45 degree gives the greatest distance
Any two angles that add to 90 degrees will hit the same place

18. Projectile Motion
Air Resistance

19. Projectile Motion
Velocity