(1) Examine the truss in Figure 2 and identify zero-force members. (2) Reactions are given. Ax = 0, A, = 12 kN (↓), and Cy = 32 kN (†). Determine member forces FCJ, FFC, and FGH by any method. L A K G H J F B X 6 m X C 6 m D E 20 kN 12 m 8 m 12 m 5 m. K

NEED ASAP. SOLVE CORRECTLY AND PROVIDE DETAILED SOLUTIONS. ALSO PROVIDE THE FBD PLEASE

For the steel truss (E= 29 × 106 psi) and loading shown, determine the deformations of members AB and AD, knowing that their cross- sectional areas are 4.0 in² and 2.8 in², respectively. It is given that P= 42 kips. P A B D 8 ft C↓ -13 ft- -13 ft- The deformation of member AB is - The deformation of member AD is in. in.

b) A cylindrical rod AB is made of aluminum is connected at B to a brass qylindrical rod BCD as shown in Figure 8. The shear modulus, G of aluminum rod AB is given by 27 GPa and the brass rod BCD of 39 GPa. The torsional reactions, TA and Ts are located at the ends of A and B, respectively. Given the portion CD of the brass rod is hollow and has an inner diameter of 40 mm, examine the angle of twist at A. 60 mm Tg = 1600 N - m 36 mm TA = 800 N m 250 mm 375 mm A 400 mm Figure 8

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A pin-connected structure is supported as shown in the figure. Bar (1) is made of brass [E = 105 GPa], and bar (2) is made of an aluminum alloy [E = 70 GPa]. Bars (1) and (2) each have cross-sectional areas of 375 mm². Rigid bar ABCD is supported by a pin in a double-shear connection at B. If the allowable shear stress for pin B is 130 MPa, calculate the minimum allowable diameter for the pin at B when P = 107 kN. P A 880 mm D B 720 mm 430 mm (2) (1) 260 mm 400 mm

the truss shown in the below figure is supported by a hinge at A and a link BC. Determine the components (magnitude and direction) of the reactions at A and B

The rigid bar BDE is supported by two links AB and CD. Link AB is made of aluminum (E = 70 GPa) and has a cross-sectional area of 519 mm2; link CE is made of steel (E = 200 GPa) and has a cross-sectional area of 619 mm?. For the 41 kN force shown, determine the deflection of B (mm) *deflection should have a negative sign if compression and positive if tension. Also, your final answer should have two decimal places 04 m 0.3 m E 0.4 m 0.2 m

2.54 The rigid bar AB of negligible weight is supported by a pin at 0. When the two steel rods are attached to the ends of the bar, there is a gap A between the lower end of the left rod and its pin support at C. After attachment, the strain in the left rod is 1.5 x 10-3. What is the length of the gap A? The cross-sectional areas are 300 mm? for rod AC and 250 mm² for rod BD. Use E = 200 GPa for steel. A B 0.75 m -1.5 m 2 m FIG. P2.53, P2.54

Determine the reactions and the force in each member of the trusses shown in Figs. using the method of consistent deformations