1. added graphs of all quantities vs s_y, due to pedagogy used in multiple representation.

2 did not add mathematical equations because there are too many and no more space on the applet, my suggestion is to get students to do a data analysis and decide the curve fit needed to derive the mathematical model equation for each segment of the motion themselves, something like using the Tracker. check out http://weelookang.blogspot.com/2011/02/ball-throw-vertically-up-video-analysis.html for details

09March 2011

added boolean variables to applet to fix error

added // sound effect added despite the energy conservation

Toolkit.getDefaultToolkit().beep(); // taken from http://www.compadre.org/OSP/items/detail.cfm?ID=8385&Attached=1

//Ceiling Bounce Model written by Wolfgang Christian

added activity to support the same journal paper multiple representation as below

19 march 2011

made the yground cannot be above ball (x,y)

improve the ymin code to involve yground