A polymer implant wire is 3 mm diameter and it is 100 mm long and a force of 100 N is applied forces, it stretches by 0.2 mm and degrading at a rate dia = diao X (e^(-kt) ) , &L= &Lo x (e^kt ) K= 0.002/month Determine the stress , strain in the wire and the modulus of the wire stress at the beginning and after 20 and 50 months note : &L: change in length