v₁ = L/T₁,
v₂ = L/T₂,
L - длина окружности кольца.
L = v₁t + v₂t = (v₁+v₂)·t,
t - ?
t = 20·30/(20+30) = 600/50 = 60/5 = 12
Ответ. 12.
Copyright © 2024 SCHOLAR.TIPS - All rights reserved.
Answers & Comments
Verified answer
v₁ = L/T₁,
v₂ = L/T₂,
L - длина окружности кольца.
L = v₁t + v₂t = (v₁+v₂)·t,
t - ?
t = 20·30/(20+30) = 600/50 = 60/5 = 12
Ответ. 12.