$[$Problem $3]$

$(20$ points$)$

Redraw the mechanism to a scale of your choice

$(4$ points$)$

Locate all the instantaneous centers of the mechanism.

$($I $6$ points$)$

$r_{O_2{O}_4}=1\mathrm{.}0in$;$,r_{O_2{O}_6}=2\mathrm{.}5in$;$,r_{O_{2}A}=1\mathrm{.}0in$

$r_{AB}=2\mathrm{.}5in$;$,r_{O_{4}B}=1\mathrm{.}5in$;$,r_{O_{4}C}=2\mathrm{.}0in$

$r_{CD}=1\mathrm{.}0in$;$,r_{CE}=1\mathrm{.}5in$;$r_{O_{6}E}=2\mathrm{.}0in$

${}_2=45$;$,{}_2^{}=5\mathrm{.}0ra\frac{d}{secCCW}$