Introduction
Figure 11.1 A helicopter has its main lift blades rotating to keep the aircraft airborne. Due to conservation of angular momentum, the body of the helicopter would want to rotate in the opposite sense to the blades, if it were not for…
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Summary
10.1 Rotational Variables 10.2 Rotation with Constant Angular Acceleration 10.3 Relating Angular and Translational Quantities 10.4 Moment of Inertia and Rotational Kinetic Energy 10.5 Calculating Moments of Inertia 10.6 Torque 10.7 Newton’s Second Law for Rotation 10.8 Work and Power for Rotational Motion
Work and Power for Rotational Motion
Learning Objectives By the end of this section, you will be able to: Thus far in the chapter, we have extensively addressed kinematics and dynamics for rotating rigid bodies around a fixed axis. In this final section, we define work…
Newton Second Law for Rotation
Learning Objectives By the end of this section, you will be able to: In this section, we put together all the pieces learned so far in this chapter to analyze the dynamics of rotating rigid bodies. We have analyzed motion…
Torque
Learning Objectives By the end of this section, you will be able to: An important quantity for describing the dynamics of a rotating rigid body is torque. We see the application of torque in many ways in our world. We…
Calculating Moments of Inertia
Learning Objectives By the end of this section, you will be able to: In the preceding section, we defined the moment of inertia but did not show how to calculate it. In this section, we show how to calculate the…
Moment of Inertia and Rotational Kinetic Energy
Learning Objectives By the end of this section, you will be able to: So far in this chapter, we have been working with rotational kinematics: the description of motion for a rotating rigid body with a fixed axis of rotation.…
Relating Angular and Translational Quantities
Learning Objectives By the end of this section, you will be able to: In this section, we relate each of the rotational variables to the translational variables defined in Motion Along a Straight Line and Motion in Two and Three Dimensions. This will…
Rotation with Constant Angular Acceleration
Learning Objectives By the end of this section, you will be able to: In the preceding section, we defined the rotational variables of angular displacement, angular velocity, and angular acceleration. In this section, we work with these definitions to derive…
Rotational Variables
Learning Objectives By the end of this section, you will be able to: So far in this text, we have mainly studied translational motion, including the variables that describe it: displacement, velocity, and acceleration. Now we expand our description of…