In a single-degree damped vibrating system, a suspended mass of (10 mathrm{~kg}) makes 25 oscillations in (15

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In a single-degree damped vibrating system, a suspended mass of \(10 \mathrm{~kg}\) makes 25 oscillations in \(15 \mathrm{~s}\). The amplitude decreases to \(1 / 4\) th of the initial value after 5 oscillations. Determine

(a) stiffness of the spring,

(b) logarithmic decrement,

(c) damping factor, and

(d) damping coefficient.

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