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範例:水平拋射(二)

某物以25 m/s之初速水平拋出,若g=10 m/s2,求(1)當水平位移與鉛直位移量值相等時,已經歷時多久時間?(2)當水平速度與鉛直速度量值相等時,水平位移與鉛直位移量值之比為何?


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By admin – 2010 年 08 月 13 日

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