1. 06-1 Physics I Class 06 Uniform Circular Motion

2. 06-2 Newton’s Second Law - Yet Another Review!

3. 06-3 Important Facts About Velocity and Acceleration Vectors

4. 06-4 Circular Motion  When an object travels in a circle, its velocity is constantly changing (in direction at least).  That means the object has a non-zero acceleration even if it moves at constant speed.

5. 06-5 Uniform Circular Motion

6. 06-6 What is the Direction of Acceleration?

7. 06-7 Centripetal Force

8. 06-8 Example: A Rock on a String Twirl a 1 kg rock attached to a string in a 1 m radius vertical circle. The speed is 4 m/sec. What forces act on the rock and what are the directions of those forces?

9. 06-9 Using Newton’s Second Law to Solve Problems - Review

10. 06-10 Case A: Rock at the Top of the Circle

11. 06-11 Case B: Rock at the Bottom of the Circle

12. 06-12 Normal Force - A Concept We Will Use in Today’s Activity

13. 06-13 Discussion Swinging a Water Bucket Overhead

14. 06-14 Class #6 Problems of the Day

15. 06-15 Answer to Problem 1 for Class #6

16. 06-16 Class #6 Problems of the Day

17. 06-17 Answer to Problem 2 for Class #6

18. 06-18 Class #6 Take-Away Concepts

19. 06-19 Activity #6 Ferris Wheel Thrill Ride

20. 06-20 Class #6 Optional Material “Centrifugal” Force?

21. 06-21 Accelerated Frames of Reference

22. 06-22 The Inertial Forces