26. Two-Dimensional Rotation and Translation Kinematics
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Learning Objectives
- Recognize analogies between rotational motion and translational motion.
- Explain why the motion of a rigid body can be regarded as a combination of translation of the center of mass and rotation about an axis through the center of mass.
- Be able to analyze problems involving rotation and translation using the energy method.
Preparation
Course Notes
Notes: Rigid Body: Translation and Rotational Motion; Rolling without Slipping (PDF - 3.8MB)#
Suggested Textbook Reading (Optional)
Chapter 10.3. Young, Hugh D., Roger A. Freedman, and A. Lewis Ford. Sears and Zemansky's University Physics: with Modern Physics. 12th ed. San Francisco, CA: Addison-Wesley, 2007. ISBN: 9780805321876.
Lecture Video
Video Excerpts
Learning Activities
Guided Activities
Read through the class slides carefully. They explain all of the concepts from the module.
Slides: Two-Dimensional Rotation and Translation Kinematics (PDF - 3.2MB)
Self-Assessment
Do the Concept Questions first to make sure you understand the main concepts from this module. Then, when you are ready, try the Challenge Problems. If you are struggling with the Challenge Problems, watch the Homework Help Session videos, which will give you tips on how to tackle problems of this type.
Concept Questions
Challenge Problems
Problem Solving Help
In the following videos Prof. Walter Lewin explains how to approach the Challenge Problems.
Help Session
Download this video:
» iTunes U (MP4 - 29MB)
» Internet Archive (MP4 - 29MB)
Related Resources
There are countless resources available online to help you learn physics. Try these:
- Learn about kinetic energy of rolling objects from HyperPhysics at Georgia State University.
- Read about the role of a pulley in rolling from Connexions.
- Try the combined translation and rotation simulations from General Physics and Java Applets.
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| « Previous: Conservation of Angular Momentum | Next: Two-Dimensional Rotation and Translation Dynamics » |


