Ответ:
Объяснение:
S(1)=S(2)=S/2
S/2/v(1)+ s/2/v(2)=s/v
S/10+S/20=S/v
3S/20=S/v
V=20/3
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Ответ:
Объяснение:
S(1)=S(2)=S/2
S/2/v(1)+ s/2/v(2)=s/v
S/10+S/20=S/v
3S/20=S/v
V=20/3