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Clearnote
Q&A
Senior High
Physics
求解🙏🏻
Physics
Senior High
8 monthsago
妍
求解🙏🏻
作直線等加速度行駛之列車通過路旁號誌,若其前半截車身通過號誌之平均速度為, 而後半截車身通過號誌之平均速度為V』,則當此列車中點恰通過該號誌瞬間,列車之速 度為? (A)²+? 【解】: 12+12 (B) √√2+ 2 2 +2 (C) 2v, V₂ V₁ + V₂ (D) vi+v₂ (D)+22 (E) VV₂ V₁+V₂
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