engineering recuitment AAI JE Technical Mock Test 2020-21 Mechanical Vibrations Damped Free Vibration
A single degree of freedom mass-spring-viscous damper system with mass m, spring constant k and viscous damping coefficient q is critically damped. The correct relation among m, k, and q is
1
\(q = \sqrt {2\;k\;m} \;\)
2
\(q = 2\sqrt {k\;m} \)
3
\(q = \sqrt {\frac{{2\;k}}{m}} \)
4
\(q = 2\sqrt {\frac{k}{m}} \)