The rigid, horizontal bar ABC is supported by a rigid, weightless link $EB$ and pinned to a wall at $A.$ Link $EB$ is pinned at both ends $E$ and $B.$ Bar ABC is subjected to a triangular distributed load with $w=4\frac{N}{m}m.$

Consider the following dimensions:

$a=686mm,c=609mm,$ and $L=1524mm$

Determine the magnitude of the average shear stress at pin $E,|{}_E|.$ The pin at $E$ is in double shear and has cross$-$sectional area $A_E=50m{m}^2.$

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