Предмет: Физика, автор: songlvneva

Человек, масса которого 60 кг, держит на плечах ящик массой 15 кг. С какой силой человек давит на землю?

Ответы

Автор ответа: MenPelmen

Дано:
$m_1=60kg$
$m_2=15kg$
$g=10 frac{H}{kg}$
$-----$
$F_T-?$

Решение:
$F_T=mg$
$m=m_1+m_2$
$m=60kg+15kg=75kg$
$F_T= 75kg*10 frac{H}{kg}=750H$

Ответ: $F_T=750H$

Предыдущий вопрос

Следующий вопрос

Похожие вопросы

Предмет: Биология, автор: begalieva831

основные стадии эволюций человека конспект

7 лет назад

Предмет: Литература, автор: nastya5165

Подходит ли пословица "Друг до поры-тот же недруг" Костылину из "Кавказский пленник"? Почему?

7 лет назад

Предмет: Английский язык, автор: qween1572

Accident at the river bank
It was a lovely day when we (0) off with great excitement on our (13) into the
forest. We had no idea that the day would turn (14) one of the worst days of our lives. We
followed the track along the river into the centre of the forest, where we had planned to rest and go
swimming under the waterfall there. We were really looking (15)_ to this part
(16) we were eating our lunch, it started to rain. It wasn't heavy at first but, once the
thunder came, the rain became heavier and heavier. Suddenly, there was a terrifying roar and I shouted
to everyone to (17) away from the river bank and run as fast as they could. The next thing I
knew, I was being swept down the river by a mountain of (18) water. It seemed to go on
forever, but then I found myself clinging to a tree, gasping for breath. I was absolutely (19)
and could hardly move. Then I finally succeeded (20) getting to dry ground and lay there trying
to (21) out how far I'd been taken. Where were my friends? Were they OK? Suddenly, I heard
someone shouting my name, and there they all were, completely dry. I had been the only one who
had been washed away. It took us all a long time to get (22) the experience and I still refuse to
go near giver banks, even on sunny days!
13. 1) trip
2) travel
3) break
4) voyage
14.1) out
2) into
3) over
4) off
15. 1) forward 2) for
3) at
4) out for
16. 1) After 2) During 3) Afterwards 4) While
17.1) get
2) make
3) take 4) set
18. 1) enormous 2) freezing 3) exhausted 4) terrible
19. 1) scary 2) confident 3) starving 4) exhausted
20.1) on
2) at
3) in
4) by
21.1) make 2) set
3) get
4) work
22. 1) over
2) out
3) on
4) off

7 лет назад

Предмет: Физика, автор: katya2400

процес перехода из одного термодинамическогосостояния в другое при постоянном давлении

10 лет назад

Предмет: Литература, автор: nastyaulanova1

Помогите Плизз!!
Краткое содержание Том Сойер Сыщик!

10 лет назад