0 0 votes A slender uniform rigid bar of mass $m$ is hinged at $O$ and supported by two springs, with stiffness, $3k$ and $k$ and a damper with damping coefficient $c$, as shown in the figure. For the system to be critically damped, the ratio $c/\sqrt{km}$ should be $2$ $4$ $2 \sqrt{7}$ $4 \sqrt{7}$ Applied Mechanics and Design gateme-2019-set2 applied-mechanics-and-design machine-design springs + – ♦Arjun 669 views answer comment Share Follow Add Sync Questions 0 reply Please log in or register to add a comment.