Calculating Work for 2 Linked Springs

[mshiddensecret]

Homework Statement

Two springs which have force constants 0.90 N/m and 1.29 N/m are linked end to end. How much work is required to stretch the springs by a distance 0.01 m?

Homework Equations

The Attempt at a Solution

I just add the total force together so:

(.5)(.9)(.01)^2 + (.5)(1.29)(.01)^2

= 1.095e^-4 J.

 

[NascentOxygen]

I'm sure they mean for you to extend the two-spring combo by a total of 0.01m.

It would not be possible to pull on the end of just one and by that extend each by 0.01m in any case.