Задача №36.12

Условие

Определить горизонтальную составляющую N возникающей при движении воды силы давления на опору колена трубы диаметра d=300 мм, по которой течет вода со скоростью v=2 м/с.

Решение




Предыдущая задача №11
Из наконечника пожарного рукава с поперечным сечением 16 см2 бьет струя воды под углом α=30° к горизонту со скоростью 8 м/с. Определить силу давления струи на вертикальную стену, пренебрегая действием силы тяжести на форму струи и считая, что частицы жидкости после встречи со стеною приобретут скорости, направленные вдоль стены.
Следующая задача №13
Вода входит в неподвижный канал переменного сечения, симметричный относительно вертикальной плоскости, со скоростью v0=2 м/с под углом α0=90° к горизонту; сечение канала при входе 0,02 м2; скорость воды у выхода из канала v1=4 м/с и направлена под углом α1=30° к горизонту. Определить модуль горизонтальной составляющей силы, с которой вода действует на стенки канала.
Источник: Решебник Мещерского 12 класс
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1.1
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2.1
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3.1
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4.1
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6.1
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9.1
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10.1
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19.1
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24.1
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26.1
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27.1
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28.1
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29.1
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31.1
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32.1
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33.1
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34.1
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35.1
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36.1
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37.1
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38.1
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39.1
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40.1
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41.1
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42.1
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43.1
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44.1
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45.3
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46.1
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47.1
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48.1
48.5
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48.44
48.48
48.49
49.1
49.2
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53.5
53.12
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54.1
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54.18
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55.2
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56.3
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56.9
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