vec$(v{)}_4=8\frac{m}{s}$

Find: a$)$ Velocity of point $B,$vec$(v{)}_B$

b$)$ Angular velocity $\frac{?}{\text{b}\text{a}\text{r}}(AB),$vec$({)}_{AB}$

c$)$ Verify your answer by solving the problem by $2$ different ways.

The velocity of $A$ is $8\frac{m}{s}$ to the right.