Формулы Flashcards

1
Q

Работа

A

A=F*s

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2
Q

Упругость

A

Fупр=k*Δl

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3
Q

Сила трения

A

Fтр=μ*N

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4
Q

Вес (если движение отсутствует или РПД)

A

P=Fтяж=mg

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5
Q

Давление

A

p=F/S

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6
Q

Сила Архимеда

A

FAжgVпогр

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7
Q

Мощность

A

N=A/t

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8
Q

Сила притяжения двух тел

A

F=Gm1m2/r^2

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9
Q

Гравитационная постоянная

A

6,67*10^-11

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10
Q

Модуль вектора по его проекциям

A

a = √(a(x)^2 + a(y)^2)

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11
Q

Способ наверняка узнать направление вектора

A

sin(α) = a(y)/a; cos(α) = a(x)/a

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12
Q

Способ примерно узнать направление вектора

A

tan(α) = a(y)/a(x)

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13
Q

Вектор скорости в РПД

A

V(→) = S(→)/t

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14
Q

Проекция вектора скорости в РПД

A

V(x) = Δx/t

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15
Q

Формула координаты тела

A

x(t) = x0 + V(x)t + (a(x)t^2)/2

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16
Q

Формула абсолютного перемещения

A

V(→)абс = V(→)отн + V(→)пер(еносное)

17
Q

Мгновенная скорость

A

V(→) = ΔS(→)/Δt при t → 0

18
Q

Проекция ускорения в РУД

A

a(→) = ΔV(→)/Δt

19
Q

Формула скорости в любое время в РУД

A

V(→)(t) = V0(→) + a(→)t

20
Q

Проекция перемещения в РУД

A

S(x) = V0(x)t + (a(x)t^2)/2

21
Q

Проекция перемещения в РПД

A

S(x) = Δx