Ejs Open Source Ball Rolling down a Straight Ramp Java Applet

A friend has this activity that i thought it will be cool to have a virtual lab too?
new repurposed name
Ejs Open Source Multi Objects ( Car , Ball , Shell , Disc ) rolling down on an Inclined Plane Java Applet
i must thanks the man, Fu-Kwun Hwang for his worthy of noble prize forum for informal learning cum community of practice CoP.

Ejs Open Source Rocket Car on an Inclined Plane Java Applet is by Wolfgang Christian, Francisco Esquembre, and Mario Belloni using the Easy Java Simulations (Ejs) modeling tool, now remixed by lookang for learning purposes.
Information about Ejs is available at:
http://www.um.es/fem/Ejs/
and also from the OSP Collection on the ComPADRE Web site:
http://www.compadre.org/osp/items/detail.cfm?ID=8243
Access Rights:
  Free access
License:
  This material is released under the GNU General Public License Version 1.

My thoughts:
so after i am done remixing it, i will also release it's remixed it's source code back, there by guarantee your freedom to share and change free software--to make sure the software is "free to change" for all its users.

/htdocs/ntnujava/ejsuser/14019/users/sgeducation/lookang/Car6web_pkg/Car6web.propertiesFull screen applet or Problem viewing java?Add http://www.phy.ntnu.edu.tw/ to exception site list
Press the Alt key and the left mouse button to drag the applet off the browser and onto the desktop. This work is licensed under a Creative Commons Attribution 2.5 Taiwan License
Download EJS jar file(1535.8kB):double click downloaded file to run it. (98 times by 26 users) , Download EJS source (12 times by 6 users) View EJS source