Rolling and Sliding down an Inclined Plane.

The transition from sliding (where I v i / I i > I R i ) to rolling (where I v i / I i = I R i ) shown in Fig. By that time, I v i was no longer zero since the ball started to slide just before the finger holding the ball was lifted gently off the ball. If I D i / I R i = 0.1, then the ball will roll to a stop if I i < 6° and if the ball is given a push to get it started, since I a i is then negative.[6] Graph: Fig. In order to determine whether the ball rolls without sliding, it is necessary to measure both I v i and I i and to compare the I v i / I i ratio with I R i . [Extracted from the article]