A critically damped single degree of freedom spring-mass-damper system used in a door closing mechanism becomes overdamped due to softening of the spring with

extended use. If the new damping ratio (\xinew) for overdamped condition is $1.2,$ the ratio of the original spring stiffness to the new spring stiffness $\left(k_{\text {org }} / k_{\text {new }}\right)$, assuming that the other parameters remain unchanged, is __________(round off to two decimal places).

A critically damped single degree of freedom spring-mass-damper system used in a door closing mechanism becomes overdamped due to softening of the spring with

extended use. If the new damping ratio (\xinew) for overdamped condition is $1.2,$ the ratio of the original spring stiffness to the new spring stiffness $\left(k_{\text {org }} / k_{\text {new }}\right)$, assuming that the other parameters remain unchanged, is __________(round off to two decimal places).

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