1. Projectile Motion
Projectile motion is independent vertical and horizontal motion through the air only under the influence of gravity after a having an initial horizontal velocity.
Two dimensional motion is any movement of an object that occurs both horizontally and vertically
Projectile – an object with independent vertical and horizontal motion that moves through the air only under the influence of gravity after a having an initial horizontal velocity.
Trajectory – the path the projectile follows (what shape is it?)
Like vectors, the horizontal and vertical velocities of a projectile are independent.

2. Which bullet hits first?
Projectile Motion
Which bullet hits first?

3. Projectile motion variables
Vx  the velocity in the horizontal (x) direction
∆dx  the distance in the horizontal (x) direction
Vy ↓ the velocity in the vertical (y) direction
∆dy ↓ the distance in the vertical (y) direction
t is still time
a(g) is still m/s2 for vertical (gravity)
∆dx = Vx(t) is the speed equation for horizontal motion
Fantastic four equations can also be used

4. Half Projectiles Horizontal calculations: ∆dx, Vx, and t
Using ∆dx = Vx(t)
Vertical calculations:
∆dy, Vy, a, t
Using fantastic four

5. What are the parts of projectile motion?
Vertical motion
Horizontal motion

6. Projectile Motion
A stone is rolled horizontally at 15 m/s from the top of a 100m cliff.
How long does it take to reach the bottom?
How far from the base of the cliff does it strike the ground
Sketch the trajectory

7. Projectile Motion