The frame has pin supports at $B$ and $E$ and is loaded as shown. The pulley at $D$ has a radius of $50$ mm$.$ Determine

a$.$ the components of the reaction at $E$

b$.$ the components of the internal forces at pin C acting on member ACE.

$F=369N$ and $a=140mm.$

a$.$ Components of the reaction at $E$

Ex $=$

N

Ey $=$

N

b$.$ Components of the internal forces at pin Cacting on member ACE

$Cy=$