Solution C3 Version 41 of Reshebnik on theoretical mechanics manuals SM Targ 1982.
Check the condition of the task C3 (page 20 in the training manual Targ SM. 1982):
A uniform rod weight P = 24 N is pivotally attached to the weightless sliders 1 and 2 (Figure S3.0 -. S3.9, Table Coll.). The coefficients of friction slide guides along which they can slide, respectively, are f1 and f2. Attached to the slider forces Q1 and Q2, as shown in the figures. The mechanism is located in a vertical plane.
Determine the amount specified in the table in the line "Find", where indicated: Q´1 (or Q´2) - the smallest value Q1 or Q2 forces, in which there is an equilibrium; Q "1 (or Q" 2) - the highest strength values of the same, in which the balance is stored; f1 (or f2) - the lowest value of friction coefficient at which equilibrium is maintained.
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