Предмет: Физика, автор: kudratkhujasunnatov

Колесо свободно вращается с частотой n = 60 вращение/с и за время падения делает N = 33 оборота. За время падения он совершает n = 33 оборота Найдите высоту падения.


Cohendd: 60 оборотов в секунду. А успело только 33. Найдите время хоть пропорцией. Чуть больше половины секунды. Затем h=gt²/2.
sharique79: привет
sharique79: ты мальчик или

Ответы

Автор ответа: mathkot
0

Ответ:

Высота падения равна 1,5125 м

Объяснение:

Дано:

\nu = 60 Гц

N = 33

g = 10 м/c²

Найти:

h\ - \ ?

---------------------------------------

Решение:

Частота:

\nu = \dfrac{N}{t} \Longrightarrow t = \dfrac{N}{\nu}

Высота с которой падало тело при падении без начальной скорости:

h = \dfrac{gt^{2}}{2} =  \dfrac{g\bigg ( \dfrac{N}{\nu} \bigg)^{2}}{2}

\boldsymbol{\boxed{h=  \dfrac{g\bigg ( \dfrac{N}{\nu} \bigg)^{2}}{2}  }}

Расчеты:

\boldsymbol h = (10 м/c² · (33 / 60 Гц)²) / 2 = 1,5125 м

Ответ: h = 1,5125 м.

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