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quiz 6 - Fall 2008 Math 285 Quiz 6 Oct 22 Name f $'V.Q.J~...

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Fall 2008 Math 285 Quiz 6: Oct 22 Name: ;\ f\. $ '-'V...Q .... J~' If you cannot complete a problem (perhaps because you forgot a formula) but you think you know how, please describe. Correct methods will receive partial "redits. 1. An object weighing 16 pounds stretches a sprin~ inc~)~h-: ~ass is initially released trom re~!Jrom a point 6 inches above the equilibnum position. Assuming that the mass undergoes free undamped motion whose motion obeys the DE of form mx" + k:J: = O. (a) write the :tial value ~~)£1em corresponding to the given problem (that's DE with appropriate coefficients with initial conditions). W "=-. l6 \~~ :M.. 3'( -t~~~ ::0") M ~ ~
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