本题目来源于试卷: Physics Unit11: Vibrations and Waves，类别为 通用国际物理
[单选题]
A mass is attached to r. 28a10egbey*la jca a vertical spring and bobs up and down between points k52osg z, z+xo;m7ldlk3g6e u t.z (lnA and B. Whe.zlult(doz2sggz nk x3l; o, 6+ekm57re is the mass located when its kinetic energy is a minimum?
A. at either A or B
B. midway between A and B
C. one-fourth of the way between A and B
D. none of the above
参考答案: A
本题详细解析:
暂无
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