Review and Summary

Final Exam schedule:

http://www.lonestar.edu/examschedule.htm

 

Tu/Th class → Final Thurs Dec 11th 12:30-2:20

Wed class → Final Wed Dec 10th 5:30-7:20

 

 

 

Chapter 8: Friction

Practice Problems

Chapter 9: Moments of Inertia

 

Why do solid cylinders roll down an incline faster than hollow cylinders?
http://en.wikipedia.org/wiki/List_of_moments_of_inertia



https://www.youtube.com/watch?v=9e9ysnJA9qA
Practice Problems:
Use Mathematica!

9.11-9.15

9.11 Moment of Inertia of a Mass

9.12 Parallel Axis Theorem

9.13 Moments of Inertia of Thin Plates

9.14 3D bodies 

9.15  Composite Bodies

9.112, 9.120, 9.136, 9.141

9.6-9.7

Moment of Inertia Examples

The Parallel-Axis Theorem

You will see this again in dynamics!

Lecture 19 Rotating Rigid Bodies Moment of Inertia

9.6 Parallel-Axis Theorem

9.7 Moments of Inertia of Composite Areas

9.6 – 9.7 HW/Examples:         9.32, 9.34, 9.41, 9.42, 9.50, 9.51

 

9.1-9.5

Statics Lecture 32: Mass Moment of Inertia and Area Moment of Inertia

Statics Lecture 33: Area Moment of Inertia -- Calculation

Chapter 9:  Remember back to centroids? (Chapt 5)  This will be similar. 


 I'll let you use Mathematica on the test, this will be a good review of Mathematica!

9.2 Second Moment, or 
Moment of Inertia of an Area

 Example:

Use Mathematica!

Open Mathematica up, and try a few:

HW: 9.1, 9.3

9.4 Polar Moment of Inertia

9.5 Radius of Gyration of an Area

Area between two lines:

HW: 9.15

Polar Moment of Inertia:







HW: 9.28