5 thoughts on “3.54”

  1. When I compute the [A]^T*[M]*[A] my bottom right element is .5788 as opposed to 5.788. You did however use .5788 when calculating A*2, so I think you just wrote it wrong in the matrix.

    1. The textbook has a brief discussion of the units for modal systems on page 109 (10th edition) at the bottom of the first column. Apparently, the units for q ought to be \textrm{m}\sqrt{\textrm{kg}}. Note that the units for q will depend on whether normalization is performed on the matrix of eigenvectors.

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