The rigid frame is situated in a vertical plane is fixed at the point A is pivotally and secured at a point B or a 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 carrying a weight on the end of P = 25kN. On the frame are a pair of forces with the moment M = 100kNm and the two forces (see. Table). Define the links at the points A and B. When the final calculations take a = 0.5 m. Given: point H: F1 = 10kN; α1 = 30; Point K: F4 = 40kN; α4 = 60.