Answer
$K=200\frac{N}{m}$
Work Step by Step
We know that
$E_{mec}=\frac{1}{2}KA^2$
$K=\frac{2E_{mec}}{A^2}$
putting the values
$K=\frac{2\times1J}{(0.1m)^2}$
$K=200\frac{N}{m}$
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.