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Консультация № 200174
27.01.2021, 20:42
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Здравствуйте, уважаемые эксперты! Прошу вас ответить на следующий вопрос:Шар массой m1 = 10 кг, движущийся со скоростью v1 = 4 м/с,
сталкивается с шаром массой m2 = 4 кг, скорость v2 которого равна 12 м/с.
Считая удар прямым, неупругим, найти скорость и шаров после удара в
двух случаях: 1) малый шар нагоняет большой шар, движущийся в
том же направлении; 2) шары движутся навстречу друг другу.
сталкивается с шаром массой m2 = 4 кг, скорость v2 которого равна 12 м/с.
Считая удар прямым, неупругим, найти скорость и шаров после удара в
двух случаях: 1) малый шар нагоняет большой шар, движущийся в
том же направлении; 2) шары движутся навстречу друг другу.
Обсуждение
28.01.2021, 11:41
общий
это ответ
Здравствуйте, aidakozhamzharova!
Закон сохранения импульса...
Для первого случая
m2v2+m1v1=(m1+m2)V (1)
Для второго случая
m2v2-m1v1=(m1+m2)V (2)
Из формулы (1)
V=(m2v2+m1v1)/(m1+m2) = 6,3 м/с
Из формулы (2)
V=(m2v2-m1v1)/(m1+m2) = 0,6 м/с
Удачи
Закон сохранения импульса...
Для первого случая
m2v2+m1v1=(m1+m2)V (1)
Для второго случая
m2v2-m1v1=(m1+m2)V (2)
Из формулы (1)
V=(m2v2+m1v1)/(m1+m2) = 6,3 м/с
Из формулы (2)
V=(m2v2-m1v1)/(m1+m2) = 0,6 м/с
Удачи
Об авторе:
С уважением
shvetski
С уважением
shvetski
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