### Author Topic: Spring: relation between displacement,velocity,acceleration,force and energy  (Read 26917 times)

#### Fu-Kwun Hwang

• Hero Member
• Posts: 3062
##### Spring: relation between displacement,velocity,acceleration,force and energy
« on: March 17, 2011, 10:37:16 pm »
The following simulation show relations between displacement(\$x\$), velocity(\$v_x\$), acceleration (\$a_x=-k*x/m\$),force(\$F_x=-k*x\$), kinetic energy(\$K=   frac{1}{2}m*v_x^2\$) and potential energy(\$U(x)=   frac{1}{2}k*x^2\$)

Drag the blue object at one end of the spring and let go.

Drag force is added. 2011/03/18 \$F=-k*x-b*v_x\$

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#### lookang

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• Posts: 1772
• http://weelookang.blogspot.com
##### Re: Spring: relation between displacement,velocity,acceleration,force and energy
« Reply #1 on: March 17, 2011, 10:55:34 pm »
nice applet above.
Like the speed controller on the right slider allow for speedy exploration by students
Like the Drag the blue object at one end of the spring and let go, clear instruction on what the applet can do.

just to share i also have one similar
http://www.phy.ntnu.edu.tw/ntnujava/index.php?topic=758.msg2870#msg2870

animated gif found here http://weelookang.blogspot.com/2010/06/ejs-open-source-simple-harmonic-motion.html

Ejs open source simple harmonic motion java applet SHM virtual lab
customized to my style and teaching needs

btw some guy (founder of PhyzixLabs Software (www.phyzixlabs.com)) introduce this to me