Предмет: Физика, автор: Саша117

первую половину пути машина проехала со скоростью 20 км/ч, вторую - 80 км/ч. Какова её средняя скорость на всем пути?( с объяснением)

Ответы

Автор ответа: Moniq

Vср = 2*V1*V2 / V1+V2. Vср = 2*20*80 / 20+80=3200/100 = 32 км/

Автор ответа: giiiiiiiiiiiiiiii

2*20*80

Vср= ______ = 32 км/ч

20+80

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