PROBLEM $1(50$ pts$)$

For the structure given, calculate:

$1)\backslash (\backslash$operatorname$\{$DSI$\}(\backslash$mathbf$\{5$ p t s$\})\backslash )$

$2)$ Support reaction at C $($roller$)25$ pts $)$

$3)$ Support Reactions at A and B $($fixed supports$)(\backslash (\backslash$mathbf$\{10\}\backslash$mathbf$\{$~ p t s$\}\backslash ))$

$4)$ Vertical Displacement at C $(10$ pts$)$

Assume EI constant.