newnewnewnew (id: 2dbef6732)

本题目来源于试卷: newnewnewnew，类别为 IB物理学

[填空题]
For the system of Fig. 4-4o 4z qv5gu8xumk, iyj2-gz;x 32 (Example 4-20) how large a masye(a r(c2pb;4amg ef3 s would box A have to have to prevent an3e2p gryc;(b4(eamfa y motion from occurring? Assume $\mu_{\mathrm{s}}=0.30$ .   

参考答案: 6.7±2%


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