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 0.30-kg mass is susp zxg 99no5l mro4/iuh 8f)kp4tended on a spring. In equilibrium thjqmonk cb ,320ft16o; ehtx f;)8ju ube mass stretches the spring 2.0 cm downward. The mass is then pulled an additional distance of 1.0 cm down and released frhtk t 2j30 ;u6u;, e8onfqob)1 jxfmcbom rest. Write down its equation of motion.
A. y = $0.01 \; \cos (22.1t)$
B. y = $0.01 \; \sin (22.1t)$
C. y = $0.03 \; \cos (22.1t)$
D. y = $0.03 \; \sin (22.1t)$
参考答案: A
本题详细解析:
暂无
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