Предмет: Физика, автор: Mara72

Помогите пожалуста! Коливання математичного маятника в одиницях СІ задано рівнянням х=0,13cosпt. Визначте довжину маятника

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Автор ответа: sokolovvovikn

из уравнения w=pi рад/с
T=2*pi/w=2*pi/pi=2 c
T=2*pi*sqrt(L/g)
L=T^2*g/4*pi^2=2^2*9,8/4*9,8=1 м

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