a
$$ A \hookrightarrow B $$
$$ A \twoheadrightarrow B $$
$$ A \dashedrightarrow B $$
$$ A \cong B $$
$$ A \xrightarrow{\sim} B $$
$$m g h=\frac{1}{2} m v_{c}^{2} $$
$$F_{\mathrm{Nc}}-m g=m \frac{v_{c}^{2}}{R_{c}} $$
$$F_{\mathrm{N} c} \leq k m g $$
$$R_{c} \geq \frac{2 h}{k-1}$$
2022-06-19 12:43
2022-06-19 11:00
2022-06-19 11:00
2022-06-18 20:14