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]
09.22: A point object is conneoj.:2veopg0 .wp0xlbcted to the 3-pc b,e ik7qqhw5 8cuuq*al4 end of a long string of negligible mass and the system swings as a simple pendulum with period T. What is the period of the pendulum if the sw7ua,q8-*ckblhc qi u45pe3q tring is made to have one-quarter of its original length?
A. $4T$
B. $2T$
C. $T$
D. $T/2$
E. $T/4$
参考答案: D
本题详细解析:
暂无
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