Solution of task 21.1.13 from the collection of Kepe OE
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21.1.13
A uniform rod 0.4 m long with a mass of 1.2 kg, at the end of which a material point of 0.8 kg is fixed, can rotate about the horizontal plane. Determine the coefficient of angular stiffness of the spiral spring, if the natural frequency of the oscillation of this system is 20Hz. (Answer 3.0.1 • 103)