Help with Physics Homework?

Posted on 2014-04-21 07:59:00 in Physics by JEREMY

Engineers can determine properties of a structure that is modeled as damped spring oscillator such as a bridge by applying a driving force to it. A weakly damped spring oscillator of mass 0.213 kg is driven by a sinusoidal force at the oscillator's resonance frequency of 20.5 Hz. Find the value of the spring constant.

The amplitude of the driving force is 0.468 N and the amplitude of the oscillator's steady-state motion in response to this driving force is 0.839 m. What is the oscillator's damping constant?

I already got the Spring Constant (3533.84 N/m) I'm not understanding how to get the damping constant though.

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