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gc textbook chapter 8 Rotational Motion (id: dd74ff4c3)

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Post time 2025-2-18 20:00:22 | Show all posts |Read mode
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 r rolls along the looped rouhor*-, n+rs-dm; q e(-abcluegh track of Fig. 8–5bki47 q7qk)dnmw+d8h 8 mf l+h8. What is the minimum value of the vertical height h th+nwmf88d7ik qhmq ) bh4k d7l+at the marble must drop if 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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