Answer all problems $1-4$ please if you cant see pictture zoom in to see numbers: Problem $1($Figure A$)$:

$($a$)(10$ points$)$ Fropreas the $600N$ force in the vector form.

$($b$)(10$ point$)$ Determine the component of the $600N$ fortel in the direction AB$.$

$($c$)(10$ points$)$ Detemine the moment of the $600N$ force with respect to the origin of the coordinate syatem.

$($d$)(10$ points$)$ Determine the angle $8.$

Problem $2(20$ pointa$)($Figure B$).$

$($a$)$ Draw the fee$-$body diagram of the strueture.

$($b$)$ Detemine the support reactions $($horizontal and vertical component of the resction force and the moment at support A$).$ Support $A$ is a fixed support

Problem $3(20$ pointa$)($Figare C$).$

$($e$)$ Draw the free$-$bedy diagram of the truss syatem.

$($b$)$ Determine the regations at the support of the truse gystem.

Problem $4.($fet points$)($Figure C$).$ Using the reactions obtaine in Problem $3,$ deteraine the forces in the members $AC,AD$;$CD$ and $CE.$