Consider the following spring system. Note that displacement at node $3$ is prescribed and force is not known.

$($a$)$ compute each element stiffness matrices and load vectors

$($b$)$ compute the global stiffness matrix and load vector

$($c$)$ apply boundary conditions and compute the nodal solution $($you can use matlab to solve the system and ANSYS to check if it is correct$)$

$($d$)$ compute forces in each element

$($e$)$ compute the reaction at the wall.