1. Vertical Circular Motion

2. Vertical Circular Motion
When an object moves in a vertical circle, the centripetal force changes from point to point
In this course, you are responsible for calculating various forces at the top and bottom of a circle

3. Calculating Forces *Think of Fc as Fnet*
Remember in Dynamics Fnet = FA – FR where, FA is “apparent weight” or “tension”

5. Special Case #1
1). MINIMUM SPEED at the top:

6. SPECIAL CASE #2
2). MAXIMUM SPEED just before the string breaks – bottom of the circle
Fc = FA - Fg
Lets rearrange to find velocity:
Note: FA will be given to you as “apparent weight” or “tension”

7. RMR- “Zero” Gravity

8. Homework
p. 103 #1-9