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範例:對稱性與斜向拋射

如圖在同一高處以相同速率vo同時分別拋出仰角θ的A及俯角θ的B，若兩者著地時間相差4秒且著地點相距60公尺，則vo的大小為多少m/s? (g=10 m/s2) (A)15 (B)20 (C)25 (D)30 (E)40 m/s。[89前中模考]

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Posted in 斜向拋射, 段考試題.

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By admin – 2010 年 08 月 17 日

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