alina Korneev
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На кінцях важеля діють сили 40 н і 240 н, відстань від точки опори до більшої сили 25 см. визначте довжину важеля, якщо важіль перебуває в рівновазі.

Физика

Ответы

siren89
F1 = 40 H
F2 = 240 H
d2 = 25 см

d1 - ?

По правилу рычага:
F1*d1 = F2*d2
d1 = F2*d2 / F1 = 240*25/40 = 150 см
atupicyn754

Как я провел летние каникулы

Весь список топиков на тему «Мои каникулы / My vacation» смотрите здесь

I think summer is the best season of all because it is warm, the nature is beautiful and we have great opportunities for rest. Summer is a time of holidays. We can go anywhere, spend our time near a river or a lake on fresh, green grass, swim in warm water, or climb mountains, play different games, ride a bicycle and so on.

I spend my summer holidays at my granny’s. There are many things there to do. What I did most of the time - I swam in the sea and sunbathed. Sometimes I made a fire with my friends at the seaside and cooked potatoes there. It was wonderful. We told anecdotes to each other, and did everything we wanted. I also got used to walk alone in the forest.

djevgen

Как я провел летние каникулы

Весь список топиков на тему «Мои каникулы / My vacation» смотрите здесь

I think summer is the best season of all because it is warm, the nature is beautiful and we have great opportunities for rest. Summer is a time of holidays. We can go anywhere, spend our time near a river or a lake on fresh, green grass, swim in warm water, or climb mountains, play different games, ride a bicycle and so on.

I spend my summer holidays at my granny’s. There are many things there to do. What I did most of the time - I swam in the sea and sunbathed. Sometimes I made a fire with my friends at the seaside and cooked potatoes there. It was wonderful. We told anecdotes to each other, and did everything we wanted. I also got used to walk alone in the forest.

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На кінцях важеля діють сили 40 н і 240 н, відстань від точки опори до більшої сили 25 см. визначте довжину важеля, якщо важіль перебуває в рівновазі.
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