Question $2(6$ points$)$

$2\mathrm{.}1$ Draw free$-$body diagram of member AB$.$

$2\mathrm{.}2$ Solve for ${}_{}$ and $M_{AB}$ for the indeterminate beam $AB$ shown below $($either the force

method, the stiffness method, or matrix analysis can be used,$).$

$2\mathrm{.}3$ Draw moment diagram for member AB $.$

Reference $1$: FEM for point load:

Reference $2$:

$M_N=2Ek(2{}_N+{}_F-3)+(FEM{)}_N$

For Internal Span or End Span with Far End Fixed

Reference $3$: