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Консультация № 200417
14.03.2021, 20:23
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Здравствуйте! У меня возникли сложности с таким вопросом:
вроде простая школьная задача, но оказалось я совсем не умею решать задачи на движение по окружности
По дорожке, имеющей форму окружности, из двух диаметрально противоположных точек А и В выбегают одновременно два спортсмена и бегут с постоянными скоростями навстречу друг другу. Первая их встреча произошла через t секунд в а метрах от В, а вторая встреча – в 2а метрах от А ( а>0, под расстоянием понимается длина кратчайшего пути по дорожке). Найти скорости спортсменов.
Единственное, что я поняла, что в первую встречу они пробежали половину окружности вместе, а во вторую полную окружность
и если взять за v1 скорость того, который выбежал из В то получим уравнение v1*t=a, то есть v1=a/t
вроде простая школьная задача, но оказалось я совсем не умею решать задачи на движение по окружности
По дорожке, имеющей форму окружности, из двух диаметрально противоположных точек А и В выбегают одновременно два спортсмена и бегут с постоянными скоростями навстречу друг другу. Первая их встреча произошла через t секунд в а метрах от В, а вторая встреча – в 2а метрах от А ( а>0, под расстоянием понимается длина кратчайшего пути по дорожке). Найти скорости спортсменов.
Единственное, что я поняла, что в первую встречу они пробежали половину окружности вместе, а во вторую полную окружность
и если взять за v1 скорость того, который выбежал из В то получим уравнение v1*t=a, то есть v1=a/t
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