1. Physics 12 Newtonian Physics Mr. Jean

2. The plan: Video clip of the day Lab safety contracts Projectile Motion Phet labs

3. Video clip of the day https://www.youtube.com/watch?v=AeTzfs Da6EUhttps://www.youtube.com/watch?v=AeTzfs Da6EU

4. Phet Projectiles http://phet.colorado.edu/en/simulation/proj ectile-motionhttp://phet.colorado.edu/en/simulation/proj ectile-motion http://phet.colorado.edu/en/simulation/proj ectile-motionhttp://phet.colorado.edu/en/simulation/proj ectile-motion

6. Example: An object is launched with an initial velocity of 400m/s at a 25 degree angle from the horizontal axis. –How long (in seconds) was it in the air? –What was the maximum Height? –What was the total range of this projectile?

7. Example: An object is launched with an initial velocity of 400m/s at a 25 degree angle from the horizontal axis.

9. What do these questions actually mean? How long (in seconds) was it in the air? What was the maximum Height? What was the total range of this projectile?

11. Example: How long was the projectile in the air?

12. Example: How long was the projectile in the air?

13. How long in the air?

15. Example: How long (in seconds) was it in the air?

16. Example: What was the maximum Height?

18. Example: What was the total range of this projectile?

19. https://www.youtube.com/watch?v=oxykqg RodTchttps://www.youtube.com/watch?v=oxykqg RodTc

20. Projectile Demonstration: Ballistics Pendulum

21. Question from last day:

24. In class work: Try the backside of this page right now. –Individually or with a partner. Use your notes and your textbook to help you through these exams.

28. Angle of Impact:

29. Total Velocity at IMPACT:

30. Projectile Challenge Question: (Medium/Difficult) Tom is an expert jumper. His hang time is 0.95 seconds. –How high can Tom jump?

31. Projectile Challenge Question: (Medium/Difficult) Tom is an expert jumper. His hang time is 0.95 seconds. How high can Tom jump?

32. Problems: A ball is dropped from the top of CN tower which is 440m above ground. The acceleration of gravity is -9.81m/s 2. How long does it take for the ball to hit the ground? A golf ball is hit straight up with the initial velocity of 50m/s. This action takes place on the moon. The moon’s gravity is -3.4m/s 2. How long does it take for the ball to hit the ground if the maximum height is 357.2m?

33. Suggested questions from textbook: P.72-73 –18, 19, 23, 26, 27 & 28 P. 80 –1, 2 & 3 P. 89 –4 to 7