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Determine the horizontal reaction force at A. Let P1 = 115 kN, P2 = 175 kN, P3 = 135 kN, and a = b = c = d = 2.7 m.

The beam is fixed at wall B. Determine the internal bending moment at point C, which is x = 7 ft to the right of support A. Let L = 30 ft, M = 950 lb·ft, P = 775 lb and w0 = 225 lb/ft.

The roof of a single-story storage building shown below, is subjected to a uniformly distributed load of 0.87 kPA over its surface area. Determine the axial load acting on the column C.

You cannot put a unit load at a hinge to determine deflection using the method of virtual work.

The floor system of a gymnasium consists of a 140-mm-thick concrete slab resting on four steel beams (A = 8,700 mm2) that, in turn, are supported by two steel girders (A = 25,300 mm2). Determine the point load acting on girder AD at point C caused by dead load.

Determine the vertical displacement of joint B. Assume A = 2 in.2 and E = 29,000 ksi for each member. Let P = 580 lb and L = 8 ft.

If one were trying to determine the vertical deflection of joint B, what would be the virtual force in member AB?

Determine the vertical reaction force at A. Let P1 = 42.1 kips, P2 = 32.6 kips, and a = b = c = d = 10 ft.

Determine the vertical displacement of joint B. Assume A = 2 in.2 and E = 29,000 ksi for each member. Let P = 470 lb and L = 8 ft.

Determine the beam deflection at point H. Assume that EI = 5.91 × 1010 kN-mm2 is constant.