This document discusses rotational kinetic energy, moment of inertia, and how an object's total kinetic energy is the sum of its translational and rotational energies when it is both moving through space and undergoing rotation. Rotational kinetic energy and moment of inertia are properties that relate to how an object rotates, while translational energy refers to its movement through space. When an object both translates and rotates, its total kinetic energy is calculated by adding its rotational and translational energies.

1. Rotational Kinetic Energy and Moment of Inertia

2. Rotational Kinetic Energy

3. Moment of Inertia

4. Combined Translation and Rotation When a rigid body is both moving through space and undergoing rotation, its total kinetic energy is the sum of its translational and rotational energies.

5. Reference: Physics for Scientists and Engineers with modern Physics 7 th Edition by Jewett/Serway © 2008 Thompson Learning Inc.