Предмет: Физика, автор: Twix110

два поезда движутся по параллельным путям навстречу друг другу модуль скорости 1 поезда 5м/с а 2 поезда 10м/с в течение какого времени второй поезд целиком проедет мимо наблюдателя сидяшего в первом поезде длина второго поезда 150 м

Ответы

Автор ответа: MashaPutnaj
0
дано V1=5 м/с     V2=10 м/с    L=150 м     t- ?

V=V1+V2

t=L/(V1+V2)=150/15=10 с

Ответ t=10 с
Автор ответа: Twix110
0
Огромнейшее спасибо!
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