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(c) (20 Points) k m M 1. Use the energy method to determine the equations of motion and the natural frequencies of the systems

(c) (20 Points) k m M 1. Use the energy method to determine the equations of motion and the natural frequencies of the systems shown in the following figures: (a) (b) Assume the mass of the torsional bar ki,k2, is negligible. K www m 30 ww ww R a B b k ww ww

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