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## Main Question or Discussion Point

Hi,

If I have a body which is freely vibrating with kinetic energy given by, say,

E

what can be said about the potential energy? Of course the total energy should be constant but how big is it, in other words what is the potential energy?

Thanks!

If I have a body which is freely vibrating with kinetic energy given by, say,

E

_{kin}=(1-1/10sin(ωt))cos^{2}(ωt)what can be said about the potential energy? Of course the total energy should be constant but how big is it, in other words what is the potential energy?

Thanks!