Lecture 20: Rotational kinematics and energetics
Objectives: In this lecture, students will learn to- extend kinematics to rotational quantities
- relate angular velocity and acceleration to linear velocity and acceleration
- interpret the meaning of the quantity moment of inertia
- calculate moments of inertia using the parallel axis theorem
- define rotational kinetic energy
- explain rolling without slipping in terms of rotation about center of mass plus translation of center of mass
- apply energy conservation to problems involving rotation
- Powerpoint: lec20.pptx
- Pdf (recommended for printing): lec20.pdf
| Introduction | Video_1.mp4 | |
| Angular kinematics quantities | Video_2.mp4 | with captions |
| Relationship to linear quantities | Video_3.mp4 | with captions |
| Rolling without slipping | Video_4.mp4 | with captions |
| Rotational kinetic energy and moment of inertia | Video_5.mp4 | with captions |
| Demo and example: Race of hoop and disk | Video_6.mp4 | with captions |
Homework assignment: HW #20