5. A 12-ft bar of negligible weight rests in a horizontal position on smooth inclines in the below figure. Compute the distance x at which load T=100 lb should be placed from point B to keep the bar horizontal. Determine also the Reactions at A. P = 200 lb 3' X- A B 12-

17. The simple beam shown supports the concentrated load P = 2000 N. Dimensions a and b are 1.2 m and 1.5 m, respectively. Determine the value of Ely at midspan in N-m³. Rz а. 784 c. 934 b. 806 d. 986

5. Determine the resultant and its distance from point A of the parallel force system acting on beam AB as shown. The forces and positions are given in the figure. Ans. R 115lb downward at 4.66ft to the right of support A. A 20lb/ft 3' 20lb 3.5' 40lb 2.5→ B

2 kip/ft 6 in 10 in B 16 in E• D• 40 kip 16 in 5 ft 5 ft 10 ft- The simply-supported beam-column above is subjected to a uniformly distributed load and an axial load, as shown. Assume that the internal resultants on the cross-section passing through point E are as follows: ND = -40 kip VD = 10 kip MD = +75 kip-ft Which of the following is closest to the longitudinal normal stress at point E? O +1.44 ksi -78.1 psi -284 psi O+128 psi

Q1. The three concurrent forces acting on the screw eye produce a resultant force FR = 0. If F2= 0.8 F, and F, is to be 90° from F, as shown. Determine the required magnitude of F3 expressed in terms of F, and the angle 0. F1 60 F: F3 Q2. Determine the magnitude of the resultant forces at A.

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