At the instant shown $=45$deg$=45$deg and $=9\mathrm{.}2$:$.$ Link $AB$ is currently vertical. First calculate the speed of point $A$ in $\frac{m}{s}$ if the length of Link $OA$ is $5\mathrm{.}2m$ and the length of Link $AB$ is $7\mathrm{.}35.($The block at $B$ is a slider that can only slide vertically up and down$)$

Next, calculate the J component of the velocity of B$.$

Next, calculate the $AB$