Question

[nguyen ngoc son]

Làm sao để đổi 1,5s=3T/4

Answer 1

[HT.Phong (9A5)]

Ta có: \(\omega=\pi\) 

\(T=\dfrac{2\pi}{\omega}=2\left(s\right)\)

\(\Rightarrow\dfrac{T}{2}< t=1,5=\dfrac{T}{2}+\dfrac{T}{4}=\dfrac{2T}{4}+\dfrac{T}{4}=\dfrac{3T}{4}\)