The wall bracket shown is pin$-$connected at points $\backslash ($ A$,$ B $\backslash ),$ and $\backslash ($ C $\backslash ).$ Neglect the weights of the members.

Calculate the VERTICAL pin reaction in pounds at Point B$.$ Use sign convention up and right are positive $(+).$

Report $4-5$ sig figs, don't include units.

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Hide hint for Question $3$

External Equilibrium then Internal Equilibrium of member AB