Solution of the C3 version 48 of Reshebnik on theoretical mechanics manuals SM Targ 1983.
Check the condition of the task C2 (Page 12-14 in the training manual Targ SM 1983.):
Homogeneous AU wood boards 15 P1 = H and BD (or BUsing) weighing P2 = H 25 are located in a vertical plane (Fig. S2.0-S2.9. Table. C2). At point C or beams are supported freely against each other (Fig. 0-5), or connected by a hinge (Fig. 0-9). External relations are joint at a point A, a weightless rod KK1 hinge at point B (Figure 0-5.), The projection H (Figure 6.) And the smooth plane (Figure 7 -. 9 at point B).
On the boards except the forces of gravity are a couple of forces with the moment M = 50 Nm, and power that the magnitude, direction and point of application are shown in Table. C2.
Determine the constraint reactions at points A, B, C, and K (Fig. 6 at the points A, C, K, and H). When the final calculations take l = 0,2 m.