A sensitive electronic system, of mass (30 mathrm{~kg}), is supported by a spring-damper system on the floor
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A sensitive electronic system, of mass \(30 \mathrm{~kg}\), is supported by a spring-damper system on the floor of a building that is subject to a harmonic motion in the frequency range \(10 \mathrm{~Hz}\) to \(75 \mathrm{~Hz}\). If the damping ratio of the suspension is 0.25, determine the stiffness of the suspension if the amplitude of vibration transmitted to the system is to be less than \(15 \%\) of the floor vibration over the given frequency range.
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