[Vật lí 12] dao động

H

hn3

Ta có :

[TEX]x=A.cos(\omega t + \varphi)[/TEX]

[TEX]\omega =\frac{2\pi}{T}[/TEX]

[TEX]v={-}\omega.A.sin(\omega t + \varphi)[/TEX]

[TEX]\text{Ban tim} \omega \text{va} \varphi \text{theo so lieu de bai , roi thay len x la on}[/TEX]
 
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