nguyennguyet08012002 nguyennguyet08012002
  • 23-06-2021
  • Physics
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M ộ t canô xuôi dòng t ừ b ế n A đế n b ế n B v ớ i t ố c độ v 1 = 30km/h; r ồ i ng ượ c dòng t ừ B v ề A v ớ i t ố c độ v 2 =20km/h. Tính t ố c độ trung bình trên l ộ trình đ i – v ề c ủ a canô

Respuesta :

Faithmorgan21 Faithmorgan21
  • 23-06-2021

Answer:

fslkgndfjlxbndxvb, xn

Explanation:

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