A Spring with a Mass Of $9$ Kg Has Damping Constant 28 and Spring Constant

Multiple Choice

A spring with a mass of $9$ kg has damping constant 28 and spring constant $195$ . Find the damping constant that would produce critical damping.

A) $c =$ $36 \sqrt { 195 }$
B) $c =$ $2340$
C) $c = 195 \sqrt { 9 }$
D) $c =$ 9 $\sqrt { 195 }$
E) $c =$ $6 \sqrt { 195 }$