15.6.2. What initial angular velocity ω0 is necessary to inform a homogeneous rod of length l = 3 m, so that it rotates about a horizontal axis O, made a half-turn?

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(Chapter 3 - Dynamics theme - 15.6 Theorem of the kinetic energy of a solid change) 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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