[填空题]
A marble of mass m and radius r rolls along ths3r mbm85 )muze looped rougd/k)1 d+2bk8cwn w7-nn arsb ;7iqhdeh track of Fig. 8–58. What is the minimum value of the vertical height h that the marble must drop if it is to reach the highest point of the loop without leaving the track?bs)db+w ha dierk8w 27n1nq/;kn7dc - Assume $r\ll R$ and ignore frictional losses. h = R
Post time 2025-2-18 20:00:22
