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Задача №5.42
Условие
Груз Q может скользить по шероховатой вертикальной направляющей AB. К грузу прикреплен трос, несущий груз P. Пренебрегая размером блока D, определить:1) условие, при котором возможна зона застоя (геометрическое место возможных положений равновесия);
2) условие, при котором верхняя граница зоны застоя находится в положительной части оси y;
3) ординаты границ зоны застоя при Q=5 Н, P=10 Н, f=0,2, OD=10 см;
4) ординаты границ зоны застоя при Q=1,5 Н, P=10 Н, f=0,2, OD=10 см.
Решение
☆
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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
2.13
2.14
2.15
2.16
2.17
2.18
2.19
2.20
2.21
2.22
2.23
2.24
2.25
2.26
2.27
2.28
2.29
2.30
2.31
2.32
2.33
2.34
2.35
2.36
2.37
2.38
2.39
2.40
2.41
2.42
2.43
2.44
2.45
2.46
2.47
2.48
2.49
2.50
2.51
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2.53
2.54
2.55
3.1
3.2
3.3
3.4
3.5
3.6
3.7
3.8
3.9
3.10
3.11
3.12
3.13
3.14
3.15
3.16
3.17
3.18
3.19
3.20
3.21
3.22
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3.24
3.25
3.26
3.27
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3.31
3.32
3.33
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3.35
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4.1
4.2
4.3
4.4
4.5
4.6
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4.13
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4.44
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4.46
4.47
4.49
4.50
4.51
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4.53
4.54
4.55
4.56
4.57
4.58
4.59
4.61
4.62
4.63
4.64
4.65
4.66
4.67
4.68
4.69
4.70
4.71
4.72
4.73
4.74
5.1
5.2
5.3
5.4
5.5
5.6
5.7
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5.10
5.11
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5.14
5.15
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5.21
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5.35
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5.38
5.39
5.40
5.41
5.42
6.1
6.2
6.3
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6.6
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7.1
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8.1
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8.42
8.43
9.1
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9.5
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10.1
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11.1
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12.1
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13.1
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15.1
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16.1
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16.41
17.1
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18.1
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19.1
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20.1
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20.13
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21.2
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22.1
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23.1
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23.48
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23.55
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23.60
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23.62
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23.64
23.65
23.66
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23.69
23.70
23.71
24.1
24.2
24.3
24.4
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24.31
24.34
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24.46
25.1
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26.1
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26.4
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26.35
27.1
27.2
27.3
27.4
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27.6
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27.32
27.33
27.34
27.35
27.36
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27.38
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27.40
27.41
27.42
27.43
27.44
27.45
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27.47
27.48
27.49
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27.54
27.55
27.58
27.59
27.60
27.61
27.62
27.63
27.64
27.65
28.1
28.2
28.3
28.4
28.5
28.6
28.7
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29.1
29.2
29.3
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30.1
30.2
30.3
30.4
30.5
30.6
30.7
30.8
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30.10
30.11
30.12
30.13
30.14
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31.1
31.2
31.3
31.4
31.5
31.6
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31.11
31.13
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31.15
31.16
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31.18
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31.25
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31.28
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31.31
31.32
31.33
31.34
31.35
32.1
32.2
32.3
32.4
32.5
32.6
32.7
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32.10
32.11
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32.13
32.14
32.15
32.16
32.17
32.18
32.19
32.20
32.21
32.22
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32.24
32.25
32.26
32.27
32.28
32.29
32.30
32.31
32.32
32.33
32.34
32.35
32.36
32.37
32.38
32.39
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32.43
32.44
32.45
32.46
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32.48
32.49
32.50
32.51
32.52
32.53
32.54
32.55
32.56
32.57
32.58
32.59
32.60
32.61
32.62
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32.64
32.65
32.66
32.67
32.68
32.69
32.70
32.71
32.72
32.73
32.74
32.75
32.76
32.77
32.79
32.80
32.81
32.82
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32.84
32.85
32.86
32.87
32.88
32.89
32.90
32.91
32.92
32.93
32.94
32.95
32.96
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32.98
32.99
32.100
32.101
32.102
32.103
32.104
32.105
32.106
32.107
33.1
33.2
33.3
33.4
33.5
33.6
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33.12
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33.22
34.1
34.2
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34.5
34.6
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34.30
34.31
35.1
35.2
35.3
35.4
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36.1
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37.1
37.2
37.3
37.4
37.5
37.6
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37.11
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37.35
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37.41
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37.55
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37.59
38.1
38.2
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38.53
39.1
39.2
39.4
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39.6
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40.1
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41.1
41.2
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42.1
42.2
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42.4
42.5
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43.1
43.2
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43.6
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44.1
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45.3
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45.37
46.1
46.2
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46.32
47.1
47.2
47.3
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47.6
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47.19
48.1
48.5
48.6
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48.12
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48.19
48.23
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48.26
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48.31
48.33
48.34
48.35
48.38
48.40
48.41
48.42
48.43
48.44
48.48
48.49
49.1
49.2
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49.7
49.8
49.11
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49.16
53.5
53.12
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53.16
54.1
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54.6
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54.10
54.18
54.19
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54.32
54.33
54.35
55.2
55.3
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55.5
55.6
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55.12
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55.21
55.25
55.38
55.41
55.44
56.3
56.7
56.9