Solution of task 13.5.11 from the collection of Kepe OE

Solution of task 13.5.11 from the collection of Kepe OE

13.5.11
On the material point of mass m = 10 kg, which is in oscillatory motion, the resistance force R = -? V acts. Determine the coefficient? If the period of damped oscillations is T1 = 2 s, and the ratio of the subsequent maximum deviation of the point to the previous one in the same direction is 0.85. (Answer 1.63)