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Консультация № 195174
08.04.2019, 12:55
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Здравствуйте, уважаемые эксперты! Прошу вас ответить на следующий вопрос:
материальная точка участвует в двух колебаниях, происходящих по одной прямой и выражаемых уравнением х=3sin t см; х2=2cos t см. постройте векторную диаграмму сложения колебаний. определите с ее помощью амплитуду А результирующего колебания и его начальную фазу дельта "фи", запишите его уравнение
материальная точка участвует в двух колебаниях, происходящих по одной прямой и выражаемых уравнением х=3sin t см; х2=2cos t см. постройте векторную диаграмму сложения колебаний. определите с ее помощью амплитуду А результирующего колебания и его начальную фазу дельта "фи", запишите его уравнение
Обсуждение
10.04.2019, 09:11
общий
это ответ
Здравствуйте, set.top74!
Пусть
Складываются два колебания одинакового направления и одинаковой частоты
(рад/с); амплитуда первого колебания 
ед. длины, амплитуда второго колебания 
ед. длины. Векторная диаграмма показана в прикреплённом файле. Из диаграммы видно, что амплитуда результирующего колебания составляет
(ед. длины),
а начальная фаза равна
(рад)
Следовательно, уравнение результирующего колебания суть
(ед. длины).
Графики слагаемых и результирующего колебаний Вы можете посмотреть здесь.
Пусть
Складываются два колебания одинакового направления и одинаковой частоты
(рад/с); амплитуда первого колебания ед. длины, амплитуда второго колебания ед. длины. Векторная диаграмма показана в прикреплённом файле. Из диаграммы видно, что амплитуда результирующего колебания составляет (ед. длины),а начальная фаза равна
(рад)Следовательно, уравнение результирующего колебания суть
(ед. длины).Графики слагаемых и результирующего колебаний Вы можете посмотреть здесь.
Прикрепленные файлы:
Об авторе:
Facta loquuntur.
Facta loquuntur.
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