$$T=\omega f.$$

$$T=\frac{1}{f^2}.$$

$$\omega=\frac{2\pi}{f}.$$

$$\omega=\frac{2\pi}{T}.$$

$$\frac{m_1}{m_2}.$$

$$\frac{m_2}{m_1}.$$

$$\sqrt{\frac{m_2}{m_1}}.$$

$$(\frac{m_2}{m_1})^2.$$

$$a_2=\sqrt{3}a_1.$$

$$a_1=3a_2.$$

$$a_1=9a_2.$$

$$a_2=4a_1.$$

$$\Delta\vec{p}=2\vec{p}.$$

$$\Delta\vec{p}=0.$$

$$\Delta\vec{p}=\vec{p}.$$

$$\Delta\vec{p}=-2\vec{p}.$$

$$\overrightarrow{p}=\frac{\vec{F}t}{m}.$$

$$\overrightarrow{p}=\vec{F}t.$$

$$\overrightarrow{p}=\vec{F}m.$$

$$\overrightarrow{p}=\vec{F}mt.$$

$$a=\omega^2v.$$

$$a=\frac{v^2}{\omega}.$$

$$a=v\omega.$$

$$a=v^2\omega.$$

$$A=\frac{P}{t}.$$

$$A=P^2t.$$

$$A=P.t^2.$$

$$F=\frac{2\pi mr}{T^2}.$$

$$F=\frac{4\pi^2mr}{T^2}.$$

$$F=\frac{2\pi mr}{T}.$$

$$F=\frac{4\pi^2mr}{T}.$$

$$\vec{F}=m.\Delta\vec{p}.\Delta t.$$

$$\vec{F}=\frac{\Delta\vec{p}}{\Delta t}.$$

$$\vec{F}=\Delta\vec{p}.\Delta t.$$

$$\vec{F}=m.\frac{\Delta\vec{p}}{\Delta t}.$$

$$\omega=\frac{2\pi}{T}và\omega=\frac{2\pi}{f}.$$

$$\omega=2\pi Tvà\omega=2\pi f.$$

$$\omega=\frac{2\pi}{T}và\omega=2\pi f.$$

$$\omega=2\pi Tvà\omega=\frac{2\pi}{f}.$$

giảm $$\sqrt{2}$$ lần.

Thế năng ở C dương.

$$H=\frac{1}{h}.$$

$$p=p_1+p_2+...+p_n=khôngđổi.$$

$$\overrightarrow{p}=\overrightarrow{p_1}+\overrightarrow{p_2}+...+\overrightarrow{p_n}=khôngđổi.$$

$$\overrightarrow{p}=\overrightarrow{p_1}+\overrightarrow{p_2}+...+\overrightarrow{p_n}.$$

$$p=p_1+p_2+...+p_n$$ .

$$a_{ht}=\omega^2r.$$

$$a_{ht}=\frac{\omega^2}{r}.$$

$$a_{ht}=r\omega.$$

$$a_{ht}=r^2\omega.$$