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 su3k:+) 9sn)y asfwigrl7n4v rud gov.eic0p;(spended on a spring. In equi3 o)bggnlq q w7pc3f-4librium the mass stretches the spring 2.0 cm downward. The mass is then pulled an additional distance of 1.0 cm down and released from rest. Write l4f7ncqw) -3gp qgob 3down 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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