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For the system shown in figure, with a damping ratio ξ for 0.7 and an undamped natural frequency ωn of 4 rad/sec, the value of k and a are—
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- K = 4, a = 0.35
- K = 8, a = 0.455
- K = 16, a = 0.225
- K = 64, a = 0.9
- K = 4, a = 0.35
Correct Option: C
From figure
table>
| 1 + (1 + as) K/s (s+2) |
The characteristic equation on comparing equation with the standard equation
