Dampened spring problem

Sep 2018
2
0
Trying to solve this problem but can't figure it out.

I've tried using the energy equation to solve for the amplitude but there are to many unknowns to deal with.

A mass on a spring oscillates in damped harmonic motion with initial amplitude 12.2 cm. After five complete oscillations, the system has lost 50% of its initial energy. What is the amplitude of the oscillation after the system has undergone ten complete oscillations?
You may assume that b2 << km.
 
Jun 2016
1,150
520
England
What are b2 and km?

You shouldn't just assume we are familiar with all the naming conventions that you are using.
 
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Aug 2010
434
174
By the way, the spring is "damped" not "dampened" (no one sprinkled it with water).
 
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