Question: The instrument is centered uniformly on a platform P , which in turn is supported by four springs, each spring having a stiffness k =

The instrument is centered uniformly on a platform P, which in turn is supported by four springs, each spring having a stiffness k=130Nm. If the floor is subjected to a vibration 0=7Hz, having a vertical displacement amplitude 0=0.17ft, determine the vertical displacement amplitude of the platform and instrument. The instrument and the platform have a total weight of 18lb.
The instrument is centered uniformly on a

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