*Prob. 1.4-6. A portion of the boom of a crane at a construc- tion site is shown in Fig. P1.4-6. The cable from the lift motor to the cargo sling is parallel to BE and FI and passes over a pulley that...

Extracted text: *Prob. 1.4-6. A portion of the boom of a crane at a construc- tion site is shown in Fig. P1.4-6. The cable from the lift motor to the cargo sling is parallel to BE and FI and passes over a pulley that is supported by a frictionless pin at A. The weight of the sling and pallet being lifted is W = 6 kN. Neglecting the weight of the truss members and the weight of the pulley and cable, (a) determine the axial force in each of the follow- ing members: F, (in member BC), F2 (in member CF), F; (in member FG), and F, (in member DG). (b) If member 4 were to be attached between joints C and H, instead of between joints D and G, would the force F, be the same in either case? Show calculations to support your answer. 0.3 m 0.8 m 0.3 m C- 0.8 m (typ.) (2) (3) (4) H 30°f W P1.4-6