Question

How do you determine strain and stress of a spring when given force, length, and change in length?

Answer 1

http://www.efunda.com/DesignStandards/springs/calc_comp_Fstress.cfm

This is a calculator to do it, sheer stress is actually a complicated thing, as you see.

I am wondering if your teacher means for stress to just be force applied? It is not the meaning of stress, but ...

http://www.efunda.com/DesignStandards/springs/calc_comp_Fstress.cfm