Задача №5.11
Условие
На наклонной плоскости лежит прямоугольный брус B веса 400 Н. К нему с помощью троса присоединяют прямоугольный брус A веса 200 Н, который, скользя по наклонной плоскости, натягивает трос. Коэффициенты трения с наклонной плоскостью fA=0,5 и fB=2/3. Будет ли система в дальнейшем находиться в покое? Найти натяжение T троса и величины сил трения, действующие на каждое тело. Весом троса пренебречь.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
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2.11
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2.41
2.42
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2.44
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2.46
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2.55
3.1
3.2
3.3
3.4
3.5
3.6
3.7
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3.11
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4.1
4.2
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5.1
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5.4
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6.1
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8.1
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9.1
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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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14.1
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15.1
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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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23.64
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
27.2
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27.4
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27.6
27.7
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27.32
27.33
27.34
27.35
27.36
27.37
27.38
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27.40
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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
28.8
28.9
28.10
28.11
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28.20
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29.1
29.2
29.3
29.4
29.5
29.6
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30.1
30.2
30.3
30.4
30.5
30.6
30.7
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30.11
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30.26
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30.30
31.1
31.2
31.3
31.4
31.5
31.6
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31.11
31.13
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31.25
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31.32
31.33
31.34
31.35
32.1
32.2
32.3
32.4
32.5
32.6
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32.11
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32.13
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32.15
32.16
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32.20
32.21
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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
32.40
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32.43
32.44
32.45
32.46
32.47
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
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32.84
32.85
32.86
32.87
32.88
32.89
32.90
32.91
32.92
32.93
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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
33.4
33.5
33.6
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33.16
33.17
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33.22
34.1
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34.5
34.6
34.7
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34.31
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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49.1
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53.5
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54.1
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55.2
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56.3
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