A uniform roller 2 weighing 4 kN is connected to the body 1 by an inextensible thread. Radius R = 0.5 m, rolling friction coefficient 0.005 m, moment of a pair of forces M = 50 N * m. Determine the greatest weight of body 1, at which it begins to slide, if the sliding friction coefficient for the roller and the body is f = 0.2?

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