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範例:衝量定理與總衝量



 如右圖所示，遊樂場中的旋轉吊椅，吊椅繞鉛直軸轉時便會向外甩出去，若鏈條長度為L,吊椅質量為m,鏈條質量可忽略不計,則當鏈條和鉛直線夾角θ時,回答下列問題: (1)吊椅旋轉角速度為若干弧度/秒? (2)鏈條張力為若干牛頓? (3)旋轉一週期間,鏈條對吊椅所施之總衝量大小為若干牛頓–秒?[新竹女中]

 


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Posted in 動量與衝量.

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By 張慶堂 – 2010 年 12 月 15 日

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