[填空题]
A marble of mass m and radius r rollb.mya7 u .niyi,4d1,ij;kk ics along the l po m,z;r)e g(hq7v*yuooped rough 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 leavingemv)yzpq7 o,g*ur(;h the track? Assume $r\ll R$ and ignore frictional losses. h = R
Post time 2025-2-18 20:00:22
