Два зайца столкнулись и испугавшись друг друга бросились бежать в прямо противоположных направлениях со v1=10 м/с и v2=15 м/с через какое время расстояни между ними станет равным 1км?
bilianskamaria03
1
09.09.2019 02:10
6
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t=L\(V1+V2)=1000\25=40 c