gc physics textbook chapter 6 problems (id: 3ed200453)

本题目来源于试卷: gc physics textbook chapter 6 problems，类别为 IB物理学

[填空题]
Suppose the roller coao ja:3hdzr mt2n)*(6nz6 waywr6+d jx lz/wg; 6 wj2is ;tba6 v2/voapster in Fig. 6–41 passes point 1 with a speed of If the average force of friction is equal to one-fifth of its weight, with what 6g/ a2sjp;a6 zw2twiv/lob;v speed will it reach point 2? The distance traveled is 45.0 m. $\approx$    m/s

参考答案: 23±2%


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