this is a very good applet that is from
Access Rights: Free access
License: This material is released under the GNU General Public License Version 3.
Rights Holder: Michael Gallis
Record Cloner: Cloned from ComPADRE Item 8227 October 27, 2008 by Wolfgang Christian
Record Updated: Feb 25, 2009 by David Winch
Suppose it will help others in the other forums like this one
acceleration along a curved ramp