質量為m,初速vo,沿運動方向施一外力F於物體上,經t秒後,(A)物體獲得的衝量為Ft (B)動量為mvo+Ft (C)動能為 (D)動能變化為
(E)此期間力對物體所作的功為
。
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Posted in 動能與功能定理.
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By admin – 2009 年 03 月 25 日
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