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範例:鉛直面圓周運動

一質量為m之質點附在一質量可略去,長度為R之長桿一端。該長桿能以其另一端為軸在一垂直面上無摩擦地自由旋轉。求下圖中，物體m在D、B、A各點的速率v、切線加速度at、法線加速度an及張力T。(重力場=g)

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Posted in 重力位能.

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By admin – 2009 年 04 月 17 日

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