๊ฐ์์น (angular position)→ $r$๊ณผ ๊ธฐ์ค์ ์ด ์ด๋ฃจ๋ ๊ฐ๋$\theta=\frac{s}{r}$ [rad]๊ฐ๋ณ์(angular displacement) $\Delta\theta=\theta_f-\theta_i$ ๊ฐ์๋ (angular speed)ํ๊ท ๊ฐ์๋$\omega_{avg}\equiv\frac{\theta_f-\theta_i}{t_f-t_i}=\frac{\Delta\theta}{\Delta t}$ [rad/s]์๊ฐ๊ฐ์๋$\omega\equiv\lim_{\Delta t \to 0} \frac{\Delta \theta}{\Delta t}=\frac{d\theta}{dt}$ [rad/s]๊ฐ๊ฐ์๋ (angular acceleration)ํ๊ท ๊ฐ๊ฐ์๋$\alpha_{avg}\equiv\frac{\o..