Question $2$

For the mechanism given:

$($a$)$ Show all necessary fixed parameters $($or$,$ dimensions$)$ and joint variables clearly on the sketch.

$($b$)$ Find the DOF and the number of independent loops.

$($c$)$ Select the joint$($s$)$ to be virtually disconnected and write down the loop closure equations vectorial form $($i$.$e$.$ vec$(A_{0}A),$vec$(AC),$ etc.$).$