Динамика(10) Flashcards

1
Q

Плотность

A

ρ = m/V

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2
Q

Равнодействующая сил

A

ΣF (векторная сумма сил)

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3
Q

Второй закон Ньютона

A

F = ma

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4
Q

Третий закон Ньютона

A

F1→2=-F2→1

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5
Q

Закон всемирного тяготения

A

Fтяг=GMm/R2

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6
Q

Сила тяжести

A

Fт=mg

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7
Q

Сила упругости

A

Fупр=kΔl

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8
Q

Сила трения

A

Fтр=μN

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9
Q

Давление

A

p = F/s

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10
Q

Сила Архимеда

A

Fарх = Pвыт. жидк. = ρжgVт

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11
Q

Вес в движении

A

P = m (g ± а)

+ , когда движение вверх, - , когда вниз

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