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 at:/l /sr;oz fzt q.zo) spring ofk n: x g1iwb +cwja*;x+eird;9 spring constant 60 N/m along a horizontal, frictionless surface. The spring is initially stretched by a force of 5.0 N on the mass and let gxrwbiack1*+9 ge;j x;w :d+ino. It takes the mass 0.50 s to go back to its equilibrium position when it is oscillating. What is the amplitude?
A. $0.030 \; m$
B. $0.083 \; m$
C. $0.30 \; m$
D. $0.83 \; m$
参考答案: B
本题详细解析:
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