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Physics, 29.07.2021 19:50 kenziepickup

Bài 3: Một ô tô di chuyển giữa hai địa điểm A và B. Vận tốc trong 1/3 đoạn đường đầu là 40 km/h, trong 1/3 đoạn đường tiếp theo là 60km/h và trong 1/3 đoạn đường cuối là 30km/h. Tính vận tốc trung bình của ô tô trên cả đoạn đường.

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Bài 3: Một ô tô di chuyển giữa hai địa điểm A và B. Vận tốc trong 1/3 đoạn đường đầu là 40 km/h, tro...
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