ME 212 Lecture Notes - Lecture 1: Circular Motion, Angular Velocity, Angular Acceleration
Document Summary
By the end of this section, you will be able to do the following: Describe rotational kinematic variables and equations and relate them to their linear counterparts. Section key terms angular acceleration kinematics of rotational motion lever arm tangential acceleration torque. In the section on uniform circular motion, we discussed motion in a circle at constant speed and, therefore, constant angular velocity. However, there are times when angular velocity is not constant rotational motion can speed up, slow down, or reverse directions. Angular velocity is not constant when a spinning skater pulls in her arms, when a child pushes a merry-go-round to make it rotate, or when a. Cd slows to a halt when switched off. In all these cases, angular acceleration occurs because the angular velocity. The faster the change occurs, the greater is the angular acceleration. is the rate of change of angular velocity.
