In the mechanism shown $V_{A2}=20i\frac{n}{s}$ in the direction shown. Use the relative

velocity method to determine ${}_2,{}_3,{}_4,$ and $V_{A4}$

Scale: $1$ in $=10i\frac{n}{s}$

$O_{2}A=2\mathrm{.}5in$

$O_{4}A=4\mathrm{.}1in$

$O_2{O}_4=3\mathrm{.}9in$