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Calculate the force and moment reactions at the bolted base $O$ of the overhead traffice$-$signal assembly. Each traffic signal has a

mass of $29kg,$ while the masses of members $OC$ and $AC$ are $70kg$ and $63kg,$ respectively. Positive answers are to the right, up$,$ and

counterclockwise.

Answers:

$O_x=ikN$

$O_y=ikN$

$M_O=,kN*m$

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