Zero degrees of freedom. Does it has any sense?

[MiGUi]

I was discussing with my friends that problem:

If we have a cone, upside down, rotating with angular speed constant, how much degrees of freedom, the system has?

Ok, I think that if the movement is restricted to rotate around a static axis, and the speed of rotation is constant, you don't have any generalized coordinate to describe the movement...

Is it possible? or even you have a generalized coordinate at last?

Thanks,
MiGUi

[pallidin]

I would think that it has a cyclic 360 degree's of freedom.

[MiGUi]

No, the degrees of freedom is the number of coordinates you need to describe the movement.