Предмет: Физика, автор: Ufcyusy64

7. Півгодини хлопчик їхав на велосипеді зі швидкістю 20 км/год, а потім пішов пішки 5
км зі швидкістю 5 км/год. Визначте середню швидкість руху хлопчика.

Ответы

Автор ответа: anonimict

0

Ответ:

1. S1=20*0,5=10км (проїхав хлопчик на велосипеді)

2. t2=5/5=1 годин (пройшов пішки)

3. Vсередня=Sзагальна/tзагальний=(S1+S2)/(t1+t2)=(10+5)/(0,5+1)=10км/год.

Объяснение:

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