Happy New Year 2026!

Happy New Year 2026!

Happy New Year 2026!

(x-2)^2=y^2
=>x-2=y

Hello.I'm Linh. My friend's name is Ngan. She lives in a house on Trinh Van Huyen Street. She has long hair and big eyes. She is very friendly and helpful. At the weekend, She usually reads books or goes to extra classes. Her dream job is to be a flight attendant because wants to travel and explore the world and talk to people.

T=\(\frac{62,8}{20}\) =3,14

A=12:2=6

Áp dụng pt độc lập: \(x^{2} + \frac{v^{2}}{\omega^{2}} = A^{2}\)

\(\Rightarrow \left(\left(\right. - 2 \left.\right)\right)^{2} + \frac{v^{2}}{2^{2}} = 6^{2} \Rightarrow v = \pm 8 \sqrt{2} \left(\right. c m / s \left.\right) = \pm 0 , 08 \sqrt{2} \left(\right. m / s \left.\right)\)

Mà vật đang chuyển động the chiều dương: \(v = 0 , 08 \sqrt{2} \left(\right. m / s \left.\right)\)

Gia tốc vật: 

\(a = - \omega^{2} x = - 2^{2} \cdot \left(\right. - 2 \left.\right) = 8 c m / s^{2}\)

x=12Cos(\(\frac{\pi}{2}\) +\(\frac{\pi}{2}\) )(cm)

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