第6章円運動と回転運動Circular and Rotational Motion原書 p.205–234

Key Equations重要な式

6.1 Angle of Rotation and Angular Velocity6.1 回転角と角速度

Angle of rotation

Δ θ = \frac{Δ s}{r}

Angular speed:

ω = \frac{Δ θ}{Δ t}

Tangential speed:

v = r ω

Centripetal $a_{c} = \frac{v^{2}}{r}$ or acceleration

向心加速度 $a_{c} = \frac{v^{2}}{r}$ または

Angular acceleration

α = \frac{Δ ω}{Δ t}

$θ = ω t$ , $ω = ω_{0} + α t$ , Centripetal force $θ = ω_{0} t + \frac{1}{2} α t^{2}$

向心力 $θ = ω t$ 、 $ω = ω_{0} + α t$ 、 $θ = ω_{0} t + \frac{1}{2} α t^{2}$