Two Blocks of mass M1 and M2 are connected by a spring of force constant k [closed]

If Block 1 is elongated towards right to a distance $x_1$ and Block 2 is elongated towards left to a distance of $x_2$ simultaneously, what is the work done by the spring on each of these blocks separately?

-
When posting homework questions, you should include some of your work on the problem and describe where you are having difficulty. This site is not designed to do your homework for you, it is to discuss generally applicable questions about physics. Please read the FAQ: physics.stackexchange.com/faq – AdamRedwine Aug 21 '12 at 12:37
Look at similar question at physics.stackexchange.com/questions/19773/… – ja72 Aug 21 '12 at 19:59

closed as too localized by David Zaslavsky♦Aug 21 '12 at 19:37

This question is unlikely to help any future visitors; it is only relevant to a small geographic area, a specific moment in time, or an extraordinarily narrow situation that is not generally applicable to the worldwide audience of the internet. For help making this question more broadly applicable, see the FAQ.