Предмет: Физика, автор: lenhom

Два тіла масами 1 кг та 2 кг рухаються назустріч одне одному зі швидкістю 3 м/с. Після зіткнення тіла рухаються як одне ціле. Знайдіть швидкість тіл після зіткнення. Накреслити малюнок!

СРОЧНО ДАЮ 40 БАЛОВ!!!

555ai555: 3 м/с кожен?

lenhom: так

Ответы

Автор ответа: 555ai555

Ответ:

Объяснение:

V1=V2 = 3 м/с.

m1 = 1 кг

m2 = 2 кг

V3 = ?

по закону сохранения импульса

m2*V1 - m1*V2 = (m1+m2)*V3

V3 = V1*(m2-m1) / (m2+m1) = 3*(2-1) / (2+1) = 1 м/с

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