I have the following equation:
\documentclass[12pt,a4paper]{report}
\usepackage{amsmath}
\begin{align}
\begin{bmatrix}
\dot x \\\dot \varphi \\\dot v \\\dot \omega
\end{bmatrix} = \begin{bmatrix} %% \vspace{5pt} does not work
v \\ \omega \\ x \omega^2 - g \sin{\varphi} \\[5pt]
\displaystyle{- \frac{\left( m_2x-m_1a \right)g\cos\varphi - 2m_2xv\omega}
{I_O +m_2x^2}}
\end{bmatrix}
\end{align}
\end{document}
and, since LHS (left-hand side) has dots over the variables, RHS (right-hand side) is slightly vertically offset to the LHS. Therefore, I would like to lower all RHS of the equation starting from the first entry.
I know we can manage vertical spacing finishing line with \\[5pt]
, but I don't know how to apply it for the first entry - aligning \dot{x}
with v
.