taitan2212 taitan2212

25-12-2023
Physics

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Một tàu cao tốc đang di chuyển ở tốc độ 50 m/s hướng về một vị trí cách đó 200 m. Tài xế bắt đầu hãm tốc với gia tốc -4 m/s2. Chiếc tàu sẽ tới đó sau Trả lời giây và tốc độ tàu khi đến là Trả lời m/s A. 5 B. 30 C. 15 D. 10

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