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Консультация № 202227
26.02.2022, 13:12
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Здравствуйте! Прошу помощи в следующем вопросе:
1.Постройте графики изменения со временем угла поворота ?(t), угловой скорости ?(t) и углового ускорения ?(t). Поясните характер движения.
2.Определите полное ускорение точки, находящейся на расстоянии R=0,1 м от оси вала в момент времени t=10 с.
1.Постройте графики изменения со временем угла поворота ?(t), угловой скорости ?(t) и углового ускорения ?(t). Поясните характер движения.
2.Определите полное ускорение точки, находящейся на расстоянии R=0,1 м от оси вала в момент времени t=10 с.
Прикрепленные файлы:
Обсуждение
26.02.2022, 18:50
общий
это ответ
Здравствуйте, neznaich!
Предлагаю Вам следующее решение задачи.
Дано:
Определить:
-- законы изменения угла поворота и углового ускорения; построить графики; вычислить полное ускорение 
точки, находящейся на расстоянии 
м от оси вала в момент времени 
с.
Пусть движение маховика задано уравнением Тогда 
В соответствии с начальными условиями имеем 
или 
откуда следует, что 
(рад), то есть 
(рад). Далее, 
(рад/c2). Движение является периодическим с периодом 
(с).
Графики функций
показаны в прикреплённых файлах.
Вычислим полное ускорение точки, находящейся на расстоянии м от оси вала в момент времени с:
(м/с2).
Предлагаю Вам следующее решение задачи.
Дано:
Определить:
-- законы изменения угла поворота и углового ускорения; построить графики; вычислить полное ускорение точки, находящейся на расстоянии м от оси вала в момент времени с.Решение
Пусть движение маховика задано уравнением
Тогда В соответствии с начальными условиями имеем или откуда следует, что (рад), то есть (рад). Далее, (рад/c2). Движение является периодическим с периодом (с).Графики функций
показаны в прикреплённых файлах.Вычислим полное ускорение точки, находящейся на расстоянии
м от оси вала в момент времени с: (м/с2).
Прикрепленные файлы:
Об авторе:
Facta loquuntur.
Facta loquuntur.
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