A 80-kg machine tool is placed on an elastic mounting. The phase angle is measured as (35.5^{circ})
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A 80-kg machine tool is placed on an elastic mounting. The phase angle is measured as \(35.5^{\circ}\) when the machine is excited at \(30 \mathrm{~Hz}\). When the machine is excited at \(60 \mathrm{~Hz}\), the phase angle is \(113^{\circ}\). Determine the equivalent damping coefficient and equivalent stiffness of the mounting.
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