Задача №23.8

Условие

Тележка, на которой установлен мотор, движется по горизонтали вправо с постоянным ускорением w=0,4 м/с2. Мотор вращается по закону φ=1/2t2. Определить абсолютное ускорение в момент t=1 с четырех точек M1, M2, M3, M4 ротора, отстоящих от оси ротора на расстоянии l=0,2√2 м и занимающих в этот момент положение, указанное на рисунке.

Решение




Предыдущая задача №7
К валу электромотора, вращающегося согласно уравнению φ=ωt (ω=const), прикреплен под прямым углом стержень OA длины l; при этом электромотор, установленный без креплений, совершает горизонтальные гармонические колебания на фундаменте по закону x=asinωt. Определить абсолютное ускорение точки A в момент времени t=π/(2ω) с.
Следующая задача №9
Автомобиль на прямолинейном участке пути движется с ускорением w0=2 м/с2. На продольный вал насажен вращающийся маховичок радиуса R=0,25 м, имеющий в данный момент угловую скорость ω=4 рад/с и угловое ускорение ε=4 рад/с2. Найти абсолютное ускорение точек обода маховичка в данный момент.
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
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2.10
2.11
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3.1
3.2
3.3
3.4
3.5
3.6
3.7
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4.1
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5.1
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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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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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24.1
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25.1
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26.1
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27.1
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27.6
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27.55
27.58
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27.64
27.65
28.1
28.2
28.3
28.4
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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
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31.35
32.1
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32.86
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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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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
56.7
56.9
ПравообладателямПользовательское соглашениеПолитика конфиденциальности • Контакты: e-mail: helplearn@yandex.ru