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1. |
A second-order system is described by the equation\(\frac{d^2 x}{dt^2}+5 \frac{dx}{dt}+7x=7y \)The frequency and damping ratio respectively are: |
A. | 1 rad / sec and 5 |
B. | 5 rad / sec and 7 |
C. | 1 rad / sec and √7 |
D. | √7 rad / sec and 0.94 |
Answer» E. | |