The force, F, of the wind blowing against a building is given by $F= \frac{C_D \rho V^2 A}{2} $, where V is the wind speed,ρ is the density of the air, A the cross-sectional area of the building, and $C_D$ is a constant termed the drag coefficient. Determine the dimensions of the drag coefficient.
Fundamental of Fluid Dynamics
Introduction
$ \frac{10}{4x} \approx 2^{12} $
$$x^2 = 0$$ When $a \ne 0 $, there are two solutions to $ ax^2 + bx + c = 0 $ and they are$$x = {-b \pm \sqrt{b^2-4ac} \over 2a}.$$,