Targ S.M. 1989 C1 option 82

The rigid frame is situated in a vertical plane, mounted pivotally at point A and point B is attached to or weightless rod hinged at the ends, to the hinge support or on rollers. At point C to the frame tied rope thrown over the block and bearing on the end of a weight P = 25kN. On the frame are a pair of forces with the moment M = 100kNm and the two forces (see. Table). Determine the reaction ties in points A and B. In the final calculations take a = 0.5 m. Given: the point K: F1 = 10kN; α1 = 75; Point E: F4 = 40kN; α4 = 30.