Предмет: Физика, автор: tolqin198490

V₁ = 6 m/s m₁ = 50 kg m₂ = 30 kg V₂= 2 m/s U = ?

Ответы

Автор ответа: LNgram

0

Объяснение:

v= (m1 * v1 + m2 *v2) / (m1+m2)

v = (50*60+30*2) / (50+30) = 360/80 = 4,5 m/s

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