Предмет: Физика, автор: turdubekovanuria9

Дано:
S1=3км
V1=5,4км/ч
V2=36км/ч
S2=1км
Найти:
Vcp-? м/с

Ответы

Автор ответа: magomedsaidm712
1

Ответ: Vср=1,9047619...м/с≈2м/с

Объяснение:

Vср=s/t

s=s1+s2=4 км= 4000 м.

t=t1+t2=(s1/v1)+(s2/v2)=2100 секунд.

Vср=4000 м/2100 с≈ 2 м/с

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