All the program in this category are written by JDK1.0.2 between 1996-2001.
Java simulations created by EJS can be found at [url=http://www.phy.ntnu.edu.tw/ntnujava/index.php?action=collapse;c=3;sa=expand#3]Easy java simulation category[/url].
It is very easy to include air drag into ejs.
Just add air drag terms into evolution equations in ejs.
For this simulation : The drag force is propotional to V[sup]2[/sup]
For projectile motion you should have the following equations in EJS evolution page:
If you want to add drag force like this one. In this model, the drag force is proportional to F=-b*V[sup]2[/sup], where b is the drag force coefficient.
You should modify the evolution equations to the following:
The following is EJS version of air drag simulation.