Предмет: Физика, автор: wwwnastenkaru

Какой длины должен быть математический маятник,чтобы период его колебаний был равен 3 с?

Ответы

Автор ответа: Marine98

2

за Т принимаешь 3сек
По формуле Т=2Π√l÷g
А затем по этой находишь l:
l=Т^2×g÷4Π^2

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