NTNUJAVA Virtual Physics LaboratoryEnjoy the fun of physics with simulations! Backup site http://enjoy.phy.ntnu.edu.tw/ntnujava/
September 21, 2020, 07:49:14 am

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 Author Topic: Elastic bouncing ball  (Read 22957 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 »

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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

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

Embed a running copy of this simulation

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• 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.
• Upload worksheets as attached files to share with more users.
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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Never too late. Never too early. ...Wisdom