Determine the internal resisting forces and moment trans- mitted by section aa in 120 lb B 45° 30 140 Ib 100 lb 3 ft 2 ft 2 ft

Required information The rigid bar AD is supported by two steel wires of 16 -in. diameter (E= 29 x 106 psi) and a pin and bracket at A. The wires were initially taut when a 240-lb load P was applied at D. F 8 in. E 10 in. В 12 in. 12 in. 12 in. Determine the additional tension in each wire when the load P is applied. The additional tension in wire BE is Ib. The additional tension in wire CFis Ib.

Determine the force in each member . Indicate whether each member is in tension ( T ) or compressive ( C ).

Replace the loading by an equivalent resultant force and couple moment acting at point A.