Physics, 07.09.2021 14:30 deisyy101

Một xe ô tô chuyển động từ A đến B rồi về C khi từ A đến B xe chuyển động với tốc độ trung bình 50km/h, khoảng cách AB bằng 90km. Khi từ B về C xe đi được 100 km với vận tốc trung bình 40km/h. Tính tốc độ trung bình của xe theo quỹ đạo trên

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Một xe ô tô chuyển động từ A đến B rồi về C khi từ A đến B xe chuyển động với tốc độ trung bình 50km...

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