**6.1 Systems of Particles and the Center of Mass **

6.1.1 The Center of Mass of a System of Particles

6.1.2 The Center of Mass of a Rigid Body

6.1.3 The Center of Mass and the Motion of a System of Particles

6.1.4 Physics in Action: Motion and the Center of Mass

**6.2 Describing Angular Motion **

6.2.1 Angular Displacement, Velocity, and Acceleration

6.2.2 Rotation with Constant Angular Acceleration

6.2.3 Relating Angular and Linear Quantities

**6.3 Rotational Inertia and Kinetic Energy **

6.3.1 The Kinetic Energy of Rotation

6.3.2 Calculating the Rotational Inertia of Solid Bodies

**6.4 The Dynamics of Rotational Motion **

6.4.1 Torque

6.4.2 Newton's Second Law for Rotational Motion

6.4.3 Solving Problems Using Newton's Second Law for Rotational Motion

6.4.4 Work and Power in Rotational Motion

**6.5 Rolling **

6.5.1 Understanding Rolling Motion

6.5.2 Solving Problems Involving Rolling Motion

6.5.3 Physics in Action: A Downhill Race

**6.6 Angular Momentum **

6.6.1 The Definition of Angular Momentum

6.6.2 Torque and Angular Momentum

**6.7 Conservation of Angular Momentum **

6.7.1 Understanding Conservation of Angular Momentum

6.7.2 Physics in Action: Conservation of Angular Momentum

6.7.3 Solving Problems Using Conservation of Angular Momentum

**6.8 Precession **

6.8.1 Understanding Precession

**6.9 Statics **

6.9.1 The Conditions for Static Equilibrium

6.9.2 Understanding Stable Equilibrium and the Center of Gravity

6.9.3 Solving Static Equilibrium Problems