The two ends of link $\backslash ($ A B $\backslash )$ of length $1\mathrm{.}6$ are hinged to two identical wheels of radius $0\mathrm{.}3.$ Wheel O is rolling without slipping on the horizontal ground with a constant clockwise angular velocity $\backslash (\backslash$omega$\_\{$O$\},-0\mathrm{.}8\backslash ).$ Wheel A is also rolling without slipping. Determine the angular velocity of bar $\backslash ($ A B $\backslash )$ when point $\backslash ($ B $\backslash )$ makes an counter$-$clockwise angle, $3\mathrm{.}7,$ with respect to vertical, e$.$g$.,$ theta $\backslash (=0\backslash )$ as shown.