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Консультация № 196102
12.08.2019, 21:28
0.00 руб.
0
5
1
Здравствуйте! Прошу помощи в следующем вопросе:
Два тела брошены одновременно с башни в горизонтальном направлении с начальными скоростями V1 и V2 (V1 > V2). Определите угол α между направлениями скоростей тел через t секунд движения в случаях, если: а) тела брошены в одну сторону, б) тела брошены в противоположные стороны.
a) a = arctgV1/gt-arctgV2/gt
б) a = arctgV1/gt+arctgV2/gt
Два тела брошены одновременно с башни в горизонтальном направлении с начальными скоростями V1 и V2 (V1 > V2). Определите угол α между направлениями скоростей тел через t секунд движения в случаях, если: а) тела брошены в одну сторону, б) тела брошены в противоположные стороны.
a) a = arctgV1/gt-arctgV2/gt
б) a = arctgV1/gt+arctgV2/gt
Обсуждение
15.08.2019, 08:33
общий
это ответ
Здравствуйте, dar777!
Введём декартову прямоугольную систему координат, начало которой поместим в точку начала движения обоих тел, за положительное направление для оси абсцисс примем то, которое совпадает с начальной скоростью первого тела, за положительное для оси ординат -- направление вниз.
а) Через время
вектор 
скорости первого тела будет иметь координаты 
а вектор 
скорости второго тела -- координаты 
Чтобы вычислить угол 
между этими векторами, воспользуемся понятием скалярного произведения двух векторов и по формуле на странице 40 [1] получим
б) Через время вектор скорости первого тела будет иметь координаты а вектор скорости второго тела -- координаты 
Тогда
Литература
1. Письменный Д. Т. Конспект лекций по высшей математике. В 2 ч. Ч. 1. -- М.: Айрис-пресс, 2006. -- 288 с.
Введём декартову прямоугольную систему координат, начало которой поместим в точку начала движения обоих тел, за положительное направление для оси абсцисс примем то, которое совпадает с начальной скоростью первого тела, за положительное для оси ординат -- направление вниз.
а) Через время
вектор скорости первого тела будет иметь координаты а вектор скорости второго тела -- координаты Чтобы вычислить угол между этими векторами, воспользуемся понятием скалярного произведения двух векторов и по формуле на странице 40 [1] получимб) Через время
вектор скорости первого тела будет иметь координаты а вектор скорости второго тела -- координаты ТогдаЛитература
1. Письменный Д. Т. Конспект лекций по высшей математике. В 2 ч. Ч. 1. -- М.: Айрис-пресс, 2006. -- 288 с.
5
Это самое лучшее решение!
Об авторе:
Facta loquuntur.
Facta loquuntur.
16.08.2019, 17:41
общий
a) a = arctgV1/gt-arctgV2/gt
б) a = arctgV1/gt+arctgV2/gt
Вот такие ответы должны быть)
б) a = arctgV1/gt+arctgV2/gt
Вот такие ответы должны быть)
Об авторе:
Лучшая увеличительная линза - ноги.
Лучшая увеличительная линза - ноги.
16.08.2019, 18:05
общий
Адресаты:
Эти ответы Вы можете получить самостоятельно. Выполните сначала рисунок и поразмышляйте над ним. Чтобы не делать рисунок, я решил задачу иначе.
Вы можете проверить, совпадают ли ответы по формулам, которые Вы указали, с теми, которые указал я.
Об авторе:
Facta loquuntur.
Facta loquuntur.
16.08.2019, 19:13
общий
Адресаты:
dar777 А как получить эти ответы?
Сделайте это:
Гордиенко Андрей Владимирович Выполните сначала рисунок и поразмышляйте над ним.
Покажите, что у Вас изображено на рисунке.
Об авторе:
Facta loquuntur.
Facta loquuntur.
Форма ответа
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