18.3.21. On AB rod articulated parallelogram OABC wearing hub 2 to which the hinge D via vertical rod is attached to the case 3. Determine equilibrium mechanism moment M force couple, if the force F = 400 N OA and crank length = 0.2 m.

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(DYNAMICS, Chapter 18 - The principle of possible displacements, paragraph - 18.3: The principle of possible displacements) of Reshebnik to the collection of short tasks on the theoretical mechanics Kep OE, JA Viba, OP Grapis, JA Svetinysh et al. Publishing Moscow / Graduate School / 1989, 2009, 2012.
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