dear prof hwang,

reference a requested made before about  http://www.phy.ntnu.edu.tw/ntnujava/index.php?topic=2403.0
modelling the forces between collision of 2 objects in 1 dimension

i kindly request for an extra feature to be added to your existing above model which ability to vary coefficient of restitution e = 0 to 1 instead of the current e =0 or e=1
here http://www.phy.ntnu.edu.tw/ntnujava/index.php?topic=1122.0

the reason is i find this feature not available on both NTNU and OSP
.
one school teacher wanted some feature that i could no make nicely and was hoping you could add to your model so does i can study it.

my model is here https://dl.dropboxusercontent.com/u/44365627/lookangEJSworkspace/export/ejs_model_Momentum1DForceModel09.jar

collision cart, showing ideal e=0 and smaller view space xmin=0 and xmax=1
http://weelookang.blogspot.sg/2014/04/ejs-dynamics-1-direction-collision.html
https://dl.dropboxusercontent.com/u/44365627/lookangEJSworkspace/export/ejs_model_Momentum1DForceModel09.jar
author: lookang, paco and engrg1
worksheets by
(lead) AJC: https://www.dropbox.com/s/5obo5awn3w3zrgr/CollsionCartsAJC.zip
(lead) RVHS: https://www.dropbox.com/s/8bq51hqa1jsjcvn/CollsionCartsRVHS.zip
IJC https://www.dropbox.com/s/ztwc4pkvtc7ho50/CollisoncartsIJC.zip
SRJC: https://www.dropbox.com/s/m4yrerc97fgesn2/CollisioncartsSRJC.zip
YJC: https://www.dropbox.com/s/uguy3ewndj0pqxr/CollisionCartsYJC2013.zip


thanks!