A small earthquake starts a lamppost vibrating back and, Ask an Expert

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A small earthquake starts a lamppost vibrating back and forth. The amplitude of the vibration of the top of the lamppost is 6.0cm at the moment the quake stops, and 8.6s later it is 2.0cm .

What is the time constant for the damping of the oscillation?

What was the amplitude of the oscillation 4.3s after the quake stopped?

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Reference No.:- M9860731

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