A vibrating system consists of a mass of 30 kg, a spring of stiffness 20 kN/m and a damper of dampingfactor 0.25. Calculate:

(a) the critical damping coefficient

(b) the natural frequency of damped vibrations

(c) the logarithmic decrement, and

(d) the ratio of two successive amplitudes.

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To solve this problem we need to use the given information about the mass stiffness and damping fact... View the full answer