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Simplicity is the ultimate sophistication. ..."da Vinci (1452-1519, Italian artist, sculptor, painter, architect, engineer and scientist) "

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 Author Topic: Elastic bouncing ball  (Read 21602 times) 0 Members and 1 Guest are viewing this topic. Click to toggle author information(expand message area).
Fu-Kwun Hwang
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 « Embed this message on: February 25, 2007, 12:57:16 pm »

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An elastic ball bouncing off the walls and another hard semi-circle object.
Collision between two objects is simulated with a invisible spring.
$\vec{F}=-k*\Delta \vec{s}$, where $\Delta\vec{s}$ is the displacement of the spring from it's original length.
You can adjust the spring constant k to change its elastic property.
Press pause and adjust the velocity of the ball with mouse (or drag it off center) to watch interesting motion.

-*-

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lookang
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http://weelookang.blogspot.com

 « Embed this message Reply #1 on: July 09, 2007, 10:58:22 pm » posted from:Singapore,,Singapore

sorry but i can't get it
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Fu-Kwun Hwang
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 « Embed this message Reply #2 on: July 10, 2007, 03:45:16 am »

You should be able to download it now.
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Engineero
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 « Embed this message Reply #3 on: October 31, 2009, 04:47:39 am » posted from:Bethlehem,,Palestinian Territory

could you but java code for this simulation please
and I'm not that good in open source is there any source for this
http://faculty.ifmo.ru/butikov/Projects/Falling_bodies.html
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lookang
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http://weelookang.blogspot.com

 « Embed this message Reply #4 on: October 31, 2009, 11:22:59 am » posted from:Singapore,,Singapore

for source codes by other authors u should ask them directly.

alternatives similar applet that i made
Ejs Open Source Creative Commons Attribute Projectile motion Java Applet
http://www.phy.ntnu.edu.tw/ntnujava/index.php?topic=745.0
has the source codes for sharing under license attribution.

u could do a search for "projectile motion" in this forum and u will find a couple more

enjoy!
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Fu-Kwun Hwang
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 « Embed this message Reply #5 on: October 31, 2009, 10:34:34 pm » posted from:Taipei,T\'ai-pei,Taiwan

Here is a EJS version of the simulation similar to the one at http://faculty.ifmo.ru/butikov/Projects/Falling_bodies.html

The force for the particle is assumed to be $\vec{F}=-b\vec{V}-\vec{g}$.
You can adjust parameter b and restitution coefficient with slider.

The id slider control which particle will be modified when x,y,z,vx,vy,vz are adjusted with slider.

You will find "size effect" when b>0. i.e. smaller particle slow down faster.

Click

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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
• Please feel free to post your ideas about how to use the simulation for better teaching and learning.
• Post questions to be asked to help students to think, to explore.
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Let's work together. We can help more users understand physics conceptually and enjoy the fun of learning physics!

to view simulation.
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Femida
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 « Embed this message Reply #6 on: March 27, 2015, 01:37:32 am » posted from:,,Satellite Provider

I congratulate, your idea simply excellent
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lookang
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http://weelookang.blogspot.com

 « Embed this message Reply #7 on: December 23, 2015, 09:30:56 am » posted from:SINGAPORE,SINGAPORE,SINGAPORE

i have a JavaScript version here

http://iwant2study.org/ospsg/index.php/interactive-resources/physics/02-newtonian-mechanics/01-kinematics/37-kinematics-in-y-direction

select dropdown menu "free fall and rebounce"

enjoy!
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Simplicity is the ultimate sophistication. ..."da Vinci (1452-1519, Italian artist, sculptor, painter, architect, engineer and scientist) "
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