Question 6.119: Determine the resultant forces at pins B and C on member ABC...
Determine the resultant forces at pins B and C on member ABC of the four-member frame.
⤹+\Sigma M_F=0 ; \quad F_{C D}(7)-\frac{4}{5} F_{B E}(2)=0
⤹+\Sigma M_A=0 ; \quad-150(7)(3.5)+\frac{4}{5} F_{B E}(5)-F_{C D}(7)=0
F_{B E}=1531 \mathrm{lb}=1.53 \mathrm{kip}
F_{C D}=350 \mathrm{lb}
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