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 vertical spri, 5g4e(nyl tvyr 0p97krj aer-ng and beyvfj uuf)6/ymspu43i85j q 5obs up and down between points A and B. Where is the mass located when its k jq8iyeuv 3)p yfsu uj554m/f6inetic 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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