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Physics, 10.11.2021 19:10 talexander131

lúc 7h sáng chạy ngược chiều từ 2 địa điểm A và B cách nhau 100km . vận tốc của xe đi từ Alaf 30km/h , của xe đi từ B là 20km/h . Coi chuyển động của hai xe như chuyển động chất điểm trên đường thẳng . Viết phương trình chuyển động của 2 xe . Xác định thời điểm hai xe gặp nhau

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lúc 7h sáng chạy ngược chiều từ 2 địa điểm A và B cách nhau 100km . vận tốc của xe đi từ Alaf 30km/h...
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