From the image, please extract all the math equations or formulas present.

Формулы из текста:

1. \[ a_x = \frac{v_x^2 - v_{0x}^2}{2s_x} \]
2. \[ g = \frac{GM_3}{(R_3+h)^2} \]
3. \[ g_0 = \frac{GM_3}{R_3^2} \]