Klassieke Mechanica/Kinematica-2: verschil tussen versies

= (2r\dot{\varphi} \dot{\theta}\cos\varphi + 2\dot{r}\dot{\theta} \sin\varphi) \vec{u}_{\theta} </math>

 

:<math> a_r = \ddot{r} - r\dot{\varphi}^2 - r\sin^2\varphi\dot{\theta}^2</math><br />

:<math> a_{\varphi} = r\ddot{\varphi} + 2\dot{r}\dot{\varphi} - r\sin\varphi\cos\varphi .\dot{\theta}^2 </math><br />