ВХОД | РЕГИСТРАЦИЯ

Задача №13.19

Условие

Решить предыдущую задачу в общем виде, выразив ускорение точек обода колеса через пройденное гирей расстояние x, радиус колеса R и ускорение гири x'=w0=const.

Решение





Предыдущая задача №18
Вал радиуса R=10 см приводится во вращение гирей P, привешенной к нему на нити. Движение гири выражается уравнением x=100t2, где x — расстояние гири от места схода нити с поверхности вала, выраженное в сантиметрах, t — время в секундах. Определить угловую скорость ω и угловое ускорение ε вала, а также полное ускорение w точки на поверхности вала в момент t.
Следующая задача №20
Стрелка гальванометра длины 3 см колеблется вокруг неподвижной оси по закону φ=φ0sinkt. Определить ускорение конца стрелки в ее среднем и крайних положениях, а также моменты времени, при которых угловая скорость ω и угловое ускорение ε обращаются в нуль, если период колебаний равен 0,4 с, а угловая амплитуда φ0=π/30.
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
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3.1
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4.1
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9.1
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10.1
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12.1
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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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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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28.1
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29.1
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30.1
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31.1
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31.35
32.1
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32.107
33.1
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34.1
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35.1
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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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48.49
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

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