Divide the shaft into $5$ elements $($allocate $6$ nodes$).$ Node $1$ is attaching the wall and does not move at all. Take a screenshot of your monitor$/$pic of your notebook and submit it as an image file$($s$).$

$1)$ Create a free body diagram.

$2)$ Develop all equations.

$3)$ Make the stiffness matrix $\backslash (\backslash$mathrm$\{$K$\}^\{(\backslash$mathrm$\{$G$\})\}\backslash )$ and show the matrix equation.