The motion of an eccentrically loaded circular hoop is analysed when it rolls without slipping in
such a way that its centre of mass stays at the same vertical height, ensuring the conservation of
kinetic energy of the hoop. The equation of the required path for such rolling is derived. Although
the kinetic energy of the rolling hoop remains constant, its distribution into the rotational mode
and the translational mode keeps varying. As a result, it turns out that the hoop’s geometric centre
actually speeds up while the hoop rolls up its path, and slows down on its way down. This presents
the idea of demonstrating an apparently gravity-defying situation where a closed right circular
cylinder that is actually eccentrically loaded on the inside is utilised. Since its centre must
speed up as it gains vertical height, and vice versa, the cylinder would look as if going against
gravity.