Question: 1 . A spring - mass - damper system is subjected to a harmonic force. The amplitude is found to be 2 0 mm at

1. A spring-mass-damper system is subjected to a harmonic force. The amplitude is found to be 20 mm at resonance, and 10 mm at 0.75 times the resonant frequency. Find the damping ratio of the system.
1 . A spring - mass - damper system is subjected

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