Physvillain

이 글은 2020.10.14에 작성됨. This post was written on Oct 14, 2020. In the rigid body system, all particles consistituting rigid body satisfy $\vec{v}=\vec{w} \times \vec{r}$. It is an example of holomonic constraints. In arbitrary dimension, angular momentum is defined as the form of 2-vector : $$\vec{\vec{L}}=\vec{x} \wedge \vec{p} \:\:\:\:\: \Leftrightarrow \:\:\:\:\: L^{ij}=x^i p^j$$ And in 3 spati..