What you say makes sense I think... I went out and found a hoop, and tried this on a flat road, and the hoop does not roll back with the same angular or translational motion... so I'm not sure
Homework Statement
A hoop is launched so that it slides with backspin across the floor. Due to friction on the floor, the hoop eventually reverses direction. A little after that, it stops slipping and rolls back to the point where it was launched. If the initial speed of the hoop was v and...