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Lesechka [4]
3 years ago
15

Một ô tô đi với vận tốc 60 km/h trên nửa phần đầu của đoạn đường AB. Trong nửa đoạnđường còn lại ô tô đi nửa thời gian đầu với v

ận tốc 40 km/h và nửa thời gian sau với vận tốc 20 km/h. Tính tốc độ trung bình của ô tô ?
Physics
1 answer:
melamori03 [73]3 years ago
4 0

Answer:

Huhfgyyeyvvucvyehukfsdjbjz/////???

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