how do i find the takeoff distance of an rc plane in matlab

main.m
% Constants
g = 9.81; % acceleration due to gravity (m/s^2)
rho = 1.225; % air density at sea level (kg/m^3)
CL_max = 1.5; % maximum coefficient of lift
Cd = 0.03; % coefficient of drag
S = 0.5; % wing area (m^2)
m = 1.5; % mass of the RC plane (kg)

% Takeoff Speed Calculation
Vr = sqrt((2*m*g)/(rho*S*CL_max));

% Takeoff Distance Calculation
d = (Vr^2)/(2*g) * (1 + sqrt(1 + (4*Cd*CL_max)/(pi*S*Cd)));
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