According to the formula from http://www.math.utah.edu/~eyre/rsbfaq/physics.html
, the air drag force is equal to Cd*Ap*[b]rho[/b]*V[sup]2[/sup]/2.
You forgot the air density term which is 1.2
I used g=10 m/s[sup]2[/sup] in the previous version. It will be changed to 9.8 m/s[sup]2[/sup]
Another smaller difference was due to I added another cos? in the air drag force:
I am going to remove the cos? and change it to
From the formula:
From the latest version : the simulation give 61.2 km/h
P.S. I am still working on another case, however, there are so many adjustable parameters that I have not found a good way to model the new case.