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Консультация № 197862
23.02.2020, 13:47
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Здравствуйте! У меня возникли сложности с таким вопросом:
Здравствуйте, уважаемые эксперты! Прошу срочно помогите решить задачу:
Частица движется так, что её радиус-вектор зависит от времени по закону r(t)=i*A(t\i)^3 + j*B + k*C(t\i)^4 , где A,B,C - постоянные величины, i,j,k - единичные орты в декартовой системе координат. Найдите тангенс угла, под которым будет направлена скорость v к оси z в момент времени t=1, если i=1 A=4м, B=3м, С=2м
а) 4,5 б) 3,5 в) 2,5 г) 1,5 д) 0,5
Здравствуйте, уважаемые эксперты! Прошу срочно помогите решить задачу:
Частица движется так, что её радиус-вектор зависит от времени по закону r(t)=i*A(t\i)^3 + j*B + k*C(t\i)^4 , где A,B,C - постоянные величины, i,j,k - единичные орты в декартовой системе координат. Найдите тангенс угла, под которым будет направлена скорость v к оси z в момент времени t=1, если i=1 A=4м, B=3м, С=2м
а) 4,5 б) 3,5 в) 2,5 г) 1,5 д) 0,5
Обсуждение
24.02.2020, 06:41
общий
24.02.2020, 06:44
Адресаты:
Хорошо, что Вы написали свой вопрос текстом. Но Вы не приложили картинку с формулой. Когда авторы вопросов ошибаются (как Вы в консультации rfpro.ru/question/197861 ), эксперты решают не ту задачу, что требуется, зря тратят время.
Я подозреваю, Вы ошибочно-неряшливо заменили знак деления [/] на знак \ "Целочисленное деление 2х чисел с отбрасыванием дробной части".
Приложите картинку с формулой или подтвердите/поправьте моё понимание Вашей формулы (формулу прилагаю ниже)
см Помощь "Использование формул" см rfpro.ru/help/services#600 ,
Тестовая (пробная) страница для тренировки в Редакторе формул rfpro.ru/forum/20/273/last
Решения похожих задач см на страницах rfpro.ru/question/196430 , rfpro.ru/question/196335 , rfpro.ru/question/194831
Дальше сами справитесь?
Я подозреваю, Вы ошибочно-неряшливо заменили знак деления [/] на знак \ "Целочисленное деление 2х чисел с отбрасыванием дробной части".
Приложите картинку с формулой или подтвердите/поправьте моё понимание Вашей формулы (формулу прилагаю ниже)
см Помощь "Использование формул" см rfpro.ru/help/services#600 ,
Тестовая (пробная) страница для тренировки в Редакторе формул rfpro.ru/forum/20/273/last
Решения похожих задач см на страницах rfpro.ru/question/196430 , rfpro.ru/question/196335 , rfpro.ru/question/194831
Дальше сами справитесь?
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