15.1.18 At point A 01/15/18 crank which rotates about a horizontal axis O acts vertical force F = 100 N. Define power force F, if the velocity vA of the point A is equal to 4 m / s.

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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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