(3) Consider the strain energy density W(F) = J-2/3 Tr (FTFLno) - 3) + (17+ 8) (12 + J-2 -2) Lno = r(1/3)(1 + (r - 1)no @ no), r> 1, [no| = 1 where J = det F, K, U >0. . Compute the Cauchy-Stress o for this energy density. . What do the stress free states look like in the limit K -> co. Hint: They are not rigid body rotations