Consider the rack shown. It is known that F $=1,108$ lb and P $=312$ lb$.$ With this information: Classifies frame members into members of $2$ forces or members of $3$ or more forces Determines all reaction forces $($A and B$)$ and the internal force of the DC member

 

1010101 A K 3 ft F . 3 ft E 4 ft C 3 ft B T2 ft 12 ft 5 ft Y