Предмет: Физика, автор: gusigagagaga12

В прикрепленной картинке высочайшего качества находится задание уровня вери изи, халявные баллы

Приложения:

gusigagagaga12: ps 100 баллов если че

Ответы

Автор ответа: TarasYashchuk
1

Ответ:

Ответ

Объяснение:

Приложения:
Автор ответа: 555ai555
0

Ответ:

Объяснение:

S1=S2=S

S3= 2*S

V1=50км/ч

V2=60км/ч

V3=70 км/ч

Vcp= ?

t1=S1/V1 = S / 50 = 8.4*S / 420

t2 = S2/V2 = S / 60 = 7*S / 420

t3 = S3 / V3 = 2*S / 70 = 12*S / 420

t = t1+t2+t3 = ((8.4+7+12)*S) / 420 = 27.4*S / 420

So = S1+S2+S3 = S+S+2*S = 4*S

Vcp = So / t = 4*S / (27.4*S / 420) = = 61.3 км/ч

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