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minhhanh210692
2 năm trước
Một người đi xe máy trong 6 phút được quãng đường 4 km. Trong các kết quả vận tốc sau kết quả nào SAI? A.v = 40 km/h. B.v = 0.67 km/ ph. C.v = 400 m / ph. D.v = 11,1 m/s.
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