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Тело массой m = 1кг движется так, что его координаты x и y изменяются от времени следующим образом: x = a - bt + ct^2, y = dt^3, где c = 1 м/с^2, d = 2 м/с^2. Определить ускорение и действующую на тело силу к концу пятой секунды.
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Предмет:
Физика -
Автор:
banditiebn - 5 лет назад
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Ответы 1
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ax(t)=x''(t)=2*c=2 м/с2ay(t)=y''(t)=6*d*ta(5)=6*2*5=60 м/с2a=sqrt(ax^2+ay^2)=sqrt(4*2+60^2)=60,03 м/с2F=m*a=1*60,03=60,03 H
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Автор:
dudleyschwartz - 2 года назад
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19
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