PHYS 200 - Fundamentals of Physics I
Lecture 11 - Torque. This lecture is a continuation of an analogue to Newton's law: τ = lα. While previous problems examined situations in which τ is not zero, this time the focus is on extreme cases in which there is no torque at all. If there is no torque, α is zero and the angular velocity is constant. The lecture starts with a simple example of a seesaw and moves on to discuss a collection of objects that are somehow subject to a variety of forces but remain in static equilibrium. (from oyc.yale.edu)
| Lecture 11 - Torque |
| Time | Lecture Chapters |
| [00:00:00] | 1. Static Equilibrium - Case of Zero-torque, Zero-angular Velocity |
| [00:03:47] | 2. The Seesaw Example |
| [00:12:02] | 3. The Case of a Rod Supported by Pivot on a Wall |
| [00:21:04] | 4. The Case of a Rod Supported by a Wire |
| [00:29:08] | 5. The Case of the Leaning Ladder |
| [00:40:05] | 6. Rigid Body Dynamics in 3D |
| [01:04:46] | 7. The Case of a Gyroscope |
| References |
| PHYS 200: Lecture 11 - Torque Instructor: Professor Ramamurti Shankar. Resources: Problem Set 6 and Solutions [pdf]. Sample Midterm Examination [pdf]. Transcript [html]. Audio [mp3]. Download Video [mov]. |
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