The bearing of a line AB in a closed traverse ABCA is 137°30' and its length is 125.8 m. The coordinates of A in x-y plane is (-5 m, 123.45 m). If the line BC passes through the origin and the x-coordinate of point C is same as that of A, then the length BC is equal to m (round off to two decimal places).

1.2 For the same beam as in problem 1.1, (a) Find the largest value of x-displacement. (b) Find the largest value of y-displacement. (c) Find the largest value of x-rotation. (d) Find the largest value of z-rotation. (Use the formulas in Roark's book for parts b and d.) Answers (a) 0.00955 in [to the right] (b) 5.915 in [up] (c) 0.124 rad (d) 0.1741 rad 20,000 in lb 1,000 lb 15,000 in lb 6,000 lb 100 lb/in 25' *5"* 10" 10" Cross-Section: Solid Circular with 2" Diameter Material Properties (Aluminum): E=10x10 psi E v=0.3 G= 2(1+v)

6. Use the moment area method to determine the slope and displacement at C Mo = Pa B

3. The unequal-leg angle is subjected to a bending moment of M, -20 kip-in. that acts at the orientation as shown in the figure. The centroid of the section is located at 1.2818 in. from the bottom and 0.7818 in. from the right edge. Also, I 3.9640 in, I,-1.9201 in and I,, -1.6159 in. Solve to determine: 0.375 in, H. M. 4.0 in. TIP18 (a) the orientation of the neutral 0375 in. axis relative to the +z axis. Show its location on a sketch of the cross Section. 3.0 in. (b) the bending stresses at points Hand K. (c) the magnitudes and locations of maximum tension and the maximum compression bending stresses in the cross section. Mechanic's