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SII Sin OB 5. For the frame shown, the magnitude of the reaction at pin C is closest to: a) 19.5 lb. b) 23.0 lb. c) 26.5 lb.
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Answer #1

Correct obtion : ( e ) 33.5 lb

4-8 lb 21 - • (MB=0 = 12xFx – 8x48= 0 → Fx = 32 db) usb 71C < 8- on 32 (Mc=0 → 8x48 + 7x32 – 16*Fy = 0 Fy = 381621 [ Fy=0 > Cy + Fy -48=0 → Cy + 38 –48 = 0 > Cy = 20 db) B; EFx = 0 => Cx-32=0 > Cx=32 db So, Reaction at bim c! Ncutar >> N

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