Предмет: Физика, автор: Klamov

Помогите пожалуйста, очень надо до конца урока осталось всего 20 минут. 4-1, 4-2

Приложения:

Ответы

Автор ответа: davydenkoklimentii

4-1. 129,6 км

4.2 1600 с

Klamov: надо все решение.

Автор ответа: 1234567890ап

4-1

Переводим время в из секунд час

1ч=60мин=3600с

t=100/3600=0,028ч

Теперь находишь скорость

V=S/t=3,6/0,028=128,57км/ч

4-2

Так как он проходит одно и тоже расстояние то

S1=S2

V1*t1=V2*t2

Переводишь все в СИ и решаешь

10м/с*2400с=15м/с*t2

t2=24000/15=1600c

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