Тарг С.М. 1988 С1 вариант 43

The rigid frame is fixed at the point A by a hinge, and at the point B it is attached either to the weightless rod BB₁, or to the hinged support on the rollers; the rod is attached to the frame and to the fixed support by the hinges. A pair of forces act on the frame with the moment M = 100N · m and two forces.
Determine the reaction of bonds at points A and B. In the final calculations take l = 0.5 m.
Given: D: α₁ = 60⁰; F₁ = 10H; E: α₄ = 30⁰; F₄ = 40H.

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