g method of members ember FH, GH and GI. I pression. D F G₁ A B -C₁ E

Determine the force in member BE of the loaded truss. The force is positive if in tension, negative if in compression. 19 12- 45 Answer: BE= = B 16° a F 16' A E 2L C 16° 12'- 19% 45⁰ L D

(c) The rigid bar ABC is suspended from three wires of the same material. The cross- sectional area of the wire at B is equal to half of the cross-sectional area of the wires at A and C. Determine the tension in each wire caused by the load P shown. ----|--²--| A 9 DAB T L P Fig. Q1(c) PL Hint: S = note that ABC is a rigid bar. EA C

F2-28. Determine the component of projection of the force along the line OA. F = 650 N y 8 13. 12 5 A -x F2-27/28