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A hoop moves over a surface without slipping. The object rolls up an incline without slipping,...

A hoop moves over a surface without slipping. The object rolls up an incline without slipping, reaches some maximum height before turning around.

Now suppose that instead of a hoop, a solid disk  rolls up the incline without slipping. (The disk is not shown in the diagram.) The solid disk reaches the same maximum height as the hoop did before turning around.

It is NOT known how the masses or radii of the two objects compare.

Before traveling up the incline, which object had the greater center-of-mass speed?

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