Calculating Effective Spring Constant for CO Molecule

[mathfilip]

I have a question regarding calculationg the effective spring constant, K, for a CO molecule. The actual question regards the relation between the angular frequency for the molecule and the rigidity K. Look at my teachers solution he gives the following formula relating those:

K(CO) = m'*w^2

, where m' is the reduced mass for the CO molecule and w is the angular frequency. I don't understand this formula at all, where does it come from? If someone has some insights in this, please help :)

 

[hikaru1221]

When you say something about spring, spring constant, etc, when it comes to things other than a real spring, it has to be a model. So how did you model CO molecule? Analyze the model and you will see the answer