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Движение двух автомобилей задано уравнениями х1=t^2+5t, x2=t^2+7t-6
Определите момент времени в которой они окажутся одновременно. Желательно решить на бумажке. Заранее спасибо!!!-
Предмет:
Физика -
Автор:
adriánzt9c - 6 лет назад
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Ответы 1
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Бумажки нет, решаю так...
Дано:
x₁ = t² +5·t
x₂ = t² +7·t - 6
______________
t - ?
Поскольку автомобили встретились, то приравняем правые части уравнений:
t² +5·t = t² +7·t - 6
2t = 6
t = 3 c
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Автор:
chance96 - 6 лет назад
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