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1. |
A single degree of freedom system of mass 22 kg and stiffness 17 kN/m vibrates freely. If damping in the system is 2%, the cyclic frequency and the damped circular frequency, respectively, are nearly |
A. | 4.4 Hz and 0.88 rad/sec |
B. | 0.88 Hz and 27.8 rad/sec |
C. | 4.4 Hz and 27.8 rad/sec |
D. | 0.88 Hz and 0.88 rad/sec |
Answer» D. 0.88 Hz and 0.88 rad/sec | |