gc textbook chapter 8 Rotational Motion (id: dd74ff4c3)

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本题目来源于试卷: gc textbook chapter 8 Rotational Motion，类别为 unclassified

[填空题]
A marble of mass m and radius rtkd.exh0i6k,n/q 1 jr rolls along the looped rough tr05/ vkvu7r+ ahtlh j)hack of Fig. 8–58. What is the minimum value of the vertical height h that the marble must drop ifa)/ +75 vtkrhlj0 vhuh it is to reach the highest point of the loop without leaving the track? Assume $r\ll R$ and ignore frictional losses. h =    R

参考答案: 2.7±2%


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