The following is a similar version created with EJS.
You can drag the star point (at the top) and end point(at the bottom) horizontally.
The velocity v change the moving speed.
Speed at upper half v[sub]1[/sub]=v/n[sub]1[/sub], speed at lower half v[sub]2[/sub]=v/n[sub]2[/sub].

/htdocs/ntnujava/ejsuser/2/users/ntnu/fkh/fastestpath_pkg/fastestpath.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(1457.9kB):double click downloaded file to run it. (41 times by 20 users) , Download EJS source (16 times by 8 users) View EJS source