Chapter $15,$ Problem $40.$

Rod $AB$ can slide freely along the floor and the inclined plane. At the instant shown the angular velocity of the rod is $4\mathrm{.}2ra\frac{d}{s}$ counterclockwise. Determine $($a$)$ the velocity of end $A$ of the rod, $($b$)$ the velocity of end $\frac{B}{Y_B}$ of the rod.

$\frac{?}{\text{b}\text{a}\text{r}}(y{)}_8$