本题目来源于试卷: gc textbook chapter 11 Vibrations and Waves，类别为 通用国际物理
[问答题]
A mass hanging from a spring can m*5: c8t rsoscoscillate;:sjkm vh6d1r in the vertical direction or can swing as a pendulum of small amplitude, but not both at the same tiv;js:1mh d k6rme. Which one is longer, the period of the vertical oscillations or the period of the horizontal swings, and by what amount? [Hint: Let $l_0$ be the length of the unstretched spring, and L be its length with the mass attached at rest.]
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