Write the global stiffness matrices form the truss members shown below.

For all members E $=29000$ksi,

Member $1$: $Al=1i{n}^2$

Member $2$: $A2=2i{n}^2$

Also, write the global force and displacement vectors for the truss. $($Do not need to solve for the displacements. Simply write out the vectors, leaving unknowns as variables$)$

Hint: Pay attention to units