15.1.23 To lift the load mass m1 = 1 200 kg winch used. Toothed wheel 3 coupled to the motor shaft rotates uniformly with an angular speed ω3 = 30 rad / s. Determine kW motor power, if the number of teeth z2 = 2z3 wheels and drum radius of r = 0,1 m.

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(Chapter 3 - Dynamics theme - 15.1: Work and power capacity) 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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