: Rolling and Slipping Motion Physics LibreTexts
Aug 13, 2020· When a bottle (or ball, or any round object) rolls, the instantaneous speed of the point touching the surface over which it rolls is zero. Consequently, its rotational speed (omega) and the translational speed of its center of rotation (v_r) (where the r subscript is to indicate rolling) are related by (v_r = omega R), with R the ...