The spring DB

shown in $($Figure $1)$ has an unstretched length of $2$ m

$.$

Figure$1$ of $1$

Crate $\text{'}$A$\text{'}$ hangs from ring D$.$ Ring D is supported by a cable C D and by a spring B D with stiffness k$.$ Ends C and B of the cable and the spring are attached to a horizontal ceiling. Ring D is $2$ meters to the right of point C$,3$ meters to the left of point B$,$ and $2$ meters below points B and C$.$

Part A

Determine the stiffness of the