CE $102$ STATICS

June $132022$

$\backslash$table$[[$Q$1(25$p$),$Q$2(25$p$),$Q$3(25$ p$),$Q$4(25$ p$),$T$(100$p$)],[,,,,]]$

FINAL

Q$1$:

A force of $F$ with a magnitude $100N$ is applied at the origin $O$ of the axes $x,y,z$ as shown. The line of action of $F$ passess through a point A whose coordinates are $3m,4m$ and $5m.$ Devermine

$($a$)$ The projection $F_{xy}$ of $F$ on the $x-y$ plane.

$($b$)$ The projection FOB of $F$ along the line $OB.$