1. Demo Can one person take out their I-phone and record the demo?
Alternatively, before school we can record the motion with Koll’s I pad and put it into vernier.

2. Demo – Cart (Horizontal Component - cart)
Draw a motion diagram for the cart.
Draw a motion diagram for a ball moving across a desk with the same velocity
Compare each motion diagram
Key Take Away: “Horizontal motion for any object with no acceleration is constant”

3. Demo – Cart with Ball (Vertical Component - ball)
Draw a motion diagram for the ball
At the instant the ball is launched:
What do we know about the vertical velocity?
What do we know about the vertical acceleration?
When the ball is at its maximum height:

4. Demo – Cart with Ball (Vertical Component)
…..
When the ball is at its maximum height:
What do we know about the vertical velocity?
What do we know about the vertical acceleration?
Draw the velocity vs. time graph for the ball:
From the moment it is launched  maximum height
From maximum height  moment it is back in the basket

5. Demo – Cart with Ball (Horizontal Component – ball)
Compare the horizontal motion of the ball in the air to that of the cart below it. How do they compare?
Is the ball accelerating horizontally?
How does the ball being in the air affect its horizontal motion?

6. Demo – Cart with Ball (Overall)
Draw the motion diagram of the ball with 7 snapshots
Key takeaways:
“the horizontal component of motion for a projectile is identical to a ball moving with the same horizontal velocity over a frictionless surface”
“the vertical component of a projectile’s motion is identical to the motion of an object in free fall with an identical upward vertical component for the initial velocity.”
The magnitude of the initial overall velocity of the projectile is identical to the magnitude of the final velocity.