本题目来源于试卷: Parameters and Typical Relationship，类别为 美国物理杯赛(Physics Bowl)
[单选题]
94.05: Amass m; attached to a horiz g9fa+ rf:-ky pontal massle )bq, t jlf0;yq8i aku /b ,yy-hz)djn*ss spring with spring constant k; is set into simple harmonic motion. Its maximum displacement from its equilibrium qz*;hdfk uyn tj,/)0lj 8-yiyq)ba,bposition is A. What is the mass’s speed as it passes through its equilibrium position?
A. 0
B. $A\frac{\sqrt{k}}{m}$
C. $A\sqrt{\frac{m}{k}}$
D. $\frac{1}{A}\sqrt{\frac{k}{m}}$
E. $\frac{1}{A}\sqrt{\frac{m}{k}}$
参考答案: B
本题详细解析:
暂无
| 
