作者augusta1219 (augusta)
看板Physics
標題[問題] 簡諧運動問題+證明
時間Sun Nov 16 11:53:35 2008
A sphere of mass=m, is attached to an elastic cord of constant=k,
which is underformed when the sphere is located at the origin O.
Knowing that the sphere may slide without friction on the
horizontal surface and the position show its velocity=v
中文翻譯大概:一個物體質量m被一個彈性繩彈力常數k綁住,
物體聚有初速v繞著圓點開始旋轉時會改變繩長,
然後物體繞的平面無摩擦。
想問說:物體繞著圓點旋轉時在平面會是一個"橢圓軌跡"的運動
那要如何證明說這軌跡是橢圓的呢?
謝謝幫忙解答!
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1F:推 qna:先證明各投影分量為簡諧運動 在證明相位差90 11/16 18:29
2F:→ augusta1219:圓形相位差也是90度呀 11/16 19:10
3F:推 qna:圓只是X-Y振幅相同的特例阿 11/16 21:53
4F:→ augusta1219:那怎麼證明他是橢圓的呢?!!! 11/17 23:09