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    Matrix equation of motion

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    1) For the two degree of freedom structure shown:

    i) what is the matrix equation of motion?. Assume that m1 and m2 oscillate harmonically with the same frequency but with different amplitudes X1 and X2 of x1(t) and x2(t).
    ii) what are the values of the amplitude ratios r1 and r2
    if m1 = m2 = m, k1 = k, and k2 =3k?

    See attached file for full problem description.

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    Solution Summary

    Using a provided degree of freedom structure, the solution explains what the matrix equation of motion is and what the value of the amplitude rations r1 and r2 are.