本题目来源于试卷: Simple Harmonic Motion: Basic Concepts，类别为 美国物理杯赛(Physics Bowl)
[单选题]
14.45: A long thin rod of mass M and length L is pivoted at one lw6k/9z zu vd ;;7ystt+er.a zen8 nd951c biadowd,u7ed so that it swings as a pendulum. The rod is set into simple harmonic oscillation and has a period of motion T. A second thin rod with mass 2M and lengd1d 8b59w,oa d i7cneuth 2L also is pivoted at one end to swing as a pendulum. When this second rod is set into simple harmonic oscillation, what is its period?
A. $2 T$
B. $\sqrt{2}T$
C. $T$
D. $\frac{1}{\sqrt{2}}T$
E. $\frac{2}{1}T$
参考答案: B
本题详细解析:
暂无
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