1. 2D Motion 2011-2012 Projectile Motion

2. What is Projectile Motion? Projectile motion is the motion of an object that is being thrown or launched. The object may be launched horizontally or at an angle.

3. What is Projectile Motion? Projectile – any object that is thrown/shot through the air Trajectory – the projectile’s path A projectile will always follow a parabolic trajectory.

4. Example of Horizontal Let’s watch a clip from Looney Tunes. Is this realistic? Why or why not?

6. What Actually Happens? http://www.physicsclassroom.com/class/vectors/u3l2e.cfm

7. What Does This Look Like? http://www.studyphysics.ca/newnotes/20/unit02_circulargravitation/chp07_2d/lesson26.htm

8. So About the Math… The math looks as though it would be horrible and scary. But it’s not! Think back to last chapter where we separated the vertical and horizontal components.

9. So Now for the Equations Horizontal: v x =d x /t Vertical: d y = v yi t + 1/2 gt 2 v yf 2 = v yi 2 + 2gd y v yf = v yi + gt

10. Solving Problems Isolate the horizontal and vertical components into a table and solve for each piece. x y

11. Example Page 150, Problem 1

12. Homework Page 150, Problems 2, 3