ВХОД | РЕГИСТРАЦИЯ

Задача №27.15

Условие

Самолет начинает пикировать без начальной вертикальной скорости. Сила сопротивления воздуха пропорциональна квадрату скорости. Найти зависимость между вертикальной скоростью в данный момент, пройденным путем и максимальной скоростью пикирования.

Решение





Предыдущая задача №14
Самолет массы 104 кг приземляется на горизонтальное поле на лыжах. Летчик подводит самолет к поверхности без вертикальной скорости и вертикального ускорения в момент приземления. Сила лобового сопротивления пропорциональна квадрату скорости и равна 10 Н при скорости в 1 м/с. Подъемная сила пропорциональна квадрату скорости и равна 30 Н при скорости в 1 м/с. Определить длину и время пробега самолета до остановки, приняв коэффициент трения f=0,1.
Следующая задача №16
На какую высоту H и за какое время T поднимется тело веса p, брошенное вертикально вверх со скоростью v0, если сопротивление воздуха может быть выражено формулой k2pv2, где v — величина скорости тела?
Источник: Решебник Мещерского 12 класс
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1.1
1.2
1.3
1.4
1.5
2.1
2.2
2.3
2.4
2.5
2.6
2.7
2.8
2.9
2.10
2.11
2.12
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2.14
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2.44
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2.55
3.1
3.2
3.3
3.4
3.5
3.6
3.7
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3.9
3.10
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3.14
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4.1
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5.1
5.2
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6.1
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7.1
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8.1
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9.1
9.2
9.3
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9.27
10.1
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11.1
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12.1
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13.1
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14.1
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16.1
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17.1
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18.1
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19.1
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20.1
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21.2
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22.1
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23.1
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23.65
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23.71
24.1
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24.34
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25.1
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26.1
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26.35
27.1
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27.4
27.5
27.6
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27.32
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27.34
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27.44
27.45
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27.47
27.48
27.49
27.50
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27.55
27.58
27.59
27.60
27.61
27.62
27.63
27.64
27.65
28.1
28.2
28.3
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28.6
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29.1
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30.1
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31.1
31.2
31.3
31.4
31.5
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31.8
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31.11
31.13
31.14
31.15
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31.18
31.19
31.20
31.21
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31.25
31.26
31.27
31.28
31.29
31.30
31.31
31.32
31.33
31.34
31.35
32.1
32.2
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32.4
32.5
32.6
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32.10
32.11
32.12
32.13
32.14
32.15
32.16
32.17
32.18
32.19
32.20
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32.22
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32.27
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32.33
32.34
32.35
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32.44
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32.50
32.51
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32.53
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32.69
32.70
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32.75
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32.84
32.85
32.86
32.87
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32.89
32.90
32.91
32.92
32.93
32.94
32.95
32.96
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32.99
32.100
32.101
32.102
32.103
32.104
32.105
32.106
32.107
33.1
33.2
33.3
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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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37.59
38.1
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38.53
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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45.37
46.1
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47.1
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48.1
48.5
48.6
48.7
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48.12
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48.23
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48.31
48.33
48.34
48.35
48.38
48.40
48.41
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48.43
48.44
48.48
48.49
49.1
49.2
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49.8
49.11
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53.5
53.12
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53.16
54.1
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54.6
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54.18
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54.32
54.33
54.35
55.2
55.3
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55.38
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56.3
56.7
56.9

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