$\{$:O$\_(2)$C$)$ rotates at a constant angular velocity of $10$ra$($d$)/($s$)$

clockwise about O$\_(2).$ It is currently in a horizontal position. The output link rotates about O$\_(3).$

Using the method of VELOCITY POLYGONS, find the angular velocity for the output link $($O$\_(3)$C$).$ I recommend

drawing the mechanism at a $1$:$1$ scale towards the center of your paper.

L$2=40$mm $(1-(9)/(16)$ in$),$ L$3=50$mm $(2$ in$),$ A$=70$mm$(2-(3)/(4)$in$),$B$=40$mm$(1-(9)/(16)$in$)$