Simple Harmonic Motion: Parameters and Typical Relationship (id: 27eae8c9f)

本题目来源于试卷: Simple Harmonic Motion: Parameters and Typical Relationship，类别为 美国物理杯赛(Physics Bowl)

[单选题]
08.48: A block of mass M on a hsp/a,/x( tjiz c w/dl3fq b55forizontal surface is connected to th -u qo v ,xn2lau7.cwd6y87klke end of a massless sprinl2k 8 uc.,xv-ql a w7o6kyd7ung of spring constant k. The block is pulled a distance x from equilibrium and when released from rest, the block moves toward equilibrium. What minimum coefficient of kinetic friction between the surface and the block would prevent the block from returning to equilibrium with non-zero speed?

A. $\frac{kx^{2}}{2Mg}$
B. $\frac{kx}{Mg}$
C. $\frac{kx}{2Mg}$
D. $\frac{Mg}{2kx}$
E. $\frac{k}{4Mgx}$


参考答案:  C


本题详细解析: 暂无

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