Задача №3.34
Условие
Для измерения больших усилий Q устроена система двух неравноплечих рычагов ABC и EDF, соединенных между собой тяжем CD. В точках B и E имеются неподвижные опоры. По рычагу EDF может передвигаться груз P веса 125 Н. Сила Q, приложенная в точке A, уравновешивается этим грузом, помещенным на расстоянии l от точки D. На какую длину x надо передвинуть для сохранения равновесия груз P при увеличении силы Q на 10 кН, если указанные на рисунке размеры соответственно равны: a=3,3 мм, b=660 мм, c=50 мм?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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2.32
2.33
2.34
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2.37
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2.40
2.41
2.42
2.43
2.44
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2.46
2.47
2.48
2.49
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2.55
3.1
3.2
3.3
3.4
3.5
3.6
3.7
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3.26
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4.1
4.2
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4.55
4.56
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5.1
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6.1
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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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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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23.48
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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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26.34
26.35
27.1
27.2
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27.6
27.7
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27.26
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27.32
27.33
27.34
27.35
27.36
27.37
27.38
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27.41
27.42
27.43
27.44
27.45
27.46
27.47
27.48
27.49
27.50
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27.55
27.58
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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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28.9
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29.1
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30.1
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30.4
30.5
30.6
30.7
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30.11
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30.30
31.1
31.2
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31.35
32.1
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32.20
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32.31
32.32
32.33
32.34
32.35
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32.48
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32.50
32.51
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32.53
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32.55
32.56
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32.64
32.65
32.66
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32.71
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32.73
32.74
32.75
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32.77
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32.84
32.85
32.86
32.87
32.88
32.89
32.90
32.91
32.92
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32.100
32.101
32.102
32.103
32.104
32.105
32.106
32.107
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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48.48
48.49
49.1
49.2
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53.5
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54.1
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54.35
55.2
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56.3
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56.9