Rolling Motion

Core Sentence / 核心句

Rolling without slipping couples translation and rotation through $v_{CM}=R\omega$.
$v_{CM}=R\omega ,a_{CM}=R\alpha$
$K=\frac{1}{2}M{v}_{CM}^2+\frac{1}{2}{I}_{CM}{\omega }^2$

Watch Out / 易错点

约束只适用于无滑滚动；friction 方向由接触点滑动趋势决定。

Mentioned In / 出现位置

• 第11次正课 · rolling

Connected Notes / 连接

• Friction
• Rotational Energy
• Rotational Kinematics