do you want it atached at both ends to something or is it just going to dangle there from one end ?

short anser is you can use a splineIK set up. parinting each link to a joint on the spline. you then add dynamic's to each of the cv's of your splineIK. You do that buy like makeing ridged body cubes at each of the cv places. Put gravity and colistions on them. With springs between them.

Let me know if you want to know more.