more common kinematic equations

• Only three equations, which are $$\tag{A1} v_t = v_0 + a t, $$ $$\tag{A2} x_t = x_0 + v_0 t + \tfrac12 a t^2, $$ $$\tag{A3} v_t^2 = v_0^2 + 2a(x_t - x_0). $$
• There are other two equations, that can be obtained by substitution of (A1) to (A2) in order to eliminate $a$ or $v_0$.