16.2.9. On the smooth floor and a smooth wall at an angle φ = 60 ° leaning rod with a mass m = 3 kg starts to slide to the center of mass acceleration AC = i - 5,5j. Determine the value of the normal reaction at A.

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(Chapter 3 - Dynamics theme - 16.2: The differential equations of plane rigid body motion) 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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