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 a vertiiacuho n 6xl),jc 3k*1cal spring and bobs up andspruo m36 u23lik :qes3r6d t3 down between points A and B. Where is the mass located when ku3dp rm r2eust63 36:li soq3its potential 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: B
本题详细解析:
暂无
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