[![enter image description here](https://i.stack.imgur.com/ROAD0.png)](https://i.stack.imgur.com/ROAD0.png)

I tried tikzpicture, but the arrow is too thin. also, I don't know how to draw the coordinate system, and put the label at the end of the arrow.

```
\begin{tikzpicture}

    \draw[->, ultra thick, blue,  arrows={-latex}]  (0,0) -- (1,1) node[sloped,midway,above=-0.1cm] {$\mathsf{v}$};

\end{tikzpicture}

```