L1=150 м L2=850 м v=20 м/с t=?
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s=(L1+L2)
t=s/v=(L1+L2)/v=(150+850)/20=50 c
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L1=150 м L2=850 м v=20 м/с t=?
===
s=(L1+L2)
t=s/v=(L1+L2)/v=(150+850)/20=50 c
==============================