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Question: c the following are four characteristic equations obtained from four...

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(c) The following are four characteristic equations obtained from four second order differential equations modelling the vibrations of a spring-mass system. (i) 6r+9-0 (i) 6r130 Solve these characteristic equations and state whether the motion of the spring is (ii)6r +80 (iv) 6 1V either (a) free undamped motion, or () critically damped motion, or (B) over-damped motion, or 6) under-damped motion.
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