dear prof,
i got a request from teacher
[quote]2. The trajectory mapped out for h<2.5r assumes that the track is imaginary. For a real track, it won't be like this, i.e. the object will be confined within the loop. Is it possible to simulate the real case?[/quote]
[img]http://www.phy.ntnu.edu.tw/ntnujava/index.php?action=dlattach;topic=2009.0;attach=5272[/img]
i not sure how to handle the collision condition elegantly.
do you have the time to code this inside your model so i can study your idea?

My request:
can add codes into your model that after free fall hits track and move in circular motion (assume e=0) to move off with velocity tangential to the circular track?

thanks!

my latest version is here
http://weelookang.blogspot.sg/2011/09/ejs-open-source-circular-loop-vertical.html
https://dl.dropboxusercontent.com/u/44365627/lookangEJSworkspace/export/ejs_model_coaster5wee.jar