hand written answer...in the shown system the link $AB$ is connected to

the link $BC$ which has at its end $$ roller at $C.$ At

the shown instant, the link $AB$ is rotating with a

constant anti$-$clockwise angular velocity of

${}_{AB}.($i$)$ Determine the angular velocity of the

link BC$.($ii$)$ Determine the acceleration of the

roller C$.$

Note that, ${}_{AB}=3\mathrm{.}6ra\frac{d}{s}{I}_{AB}=1\mathrm{.}72m,I_{BC}=2\mathrm{.}23m,=54,=23$ and $=26$