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

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

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

$F=423N$ and $a=170mm.$

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

Ex $=$ N

$Ey=$ N

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

$Cx=$ N

$cy=$