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Give an example of a spring system whose motion would be described by the solution to...

Give an example of a spring system whose motion would be described by the solution to the following initial value problem. Make sure to include units (you can choose whatever units you like, but they have to make sense and be consistent which each other).
21 x′′ + 12 x′ + 6x = 3 cos(2t)
x(0) = −2
x′(0) = −1
(In other words: I am asking you to work backwards and give an example of a word problem that would lead to this differential equation.) Then explain what steps you would take to solve this problem. You do not need to actually solve it.
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Answer #1

212 + 12x+61 = 30$/at) - First of all find the solution of 212+24 + 611 50 1. Homogeneous solution of say th. Then with th

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