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Author Topic: static equilibrium  (Read 3318 times)
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on: May 27, 2010, 02:47:45 am » posted from:SAO PAULO,SAO PAULO,BRAZIL

This following applet is static equilibrium
Created by prof Hwang Modified by Ahmed
Original project static equilibrium

There are two cases in the simulation:
The left one is a simpler one: An object hanged with a string. You can drag the blue arrow to change the external force.  The equilibrium state will be shown when you release the mouse.
If you click the always checkbox. The program will try to show the equilibrium state while you are dragging. But you will find it jump from one state to another. It is not a continuous one. Because in real case, we can not determine the force externally. Because force is an interaction between two object. It is not determined by one object alone. (The tension of the string will also change, when the interaction force between object and external world).
You can check the spring mode, to view the interaction in a more realistic way.
(Use spring to simulate the interaction : force).

The gray line shows the original length of the spring. (It will be the same as the arrow when you switch to spring mode)
Click play to start the simulation.
You can then drag the spring to change the interaction (force).

The second case is :
two objects connected by strings. The default setting is Fx1=Fx2 (horizontal forces for object1 and object2 cancel each other).
Use mouse to drag the arrows to change the external forces.
You can un-check the check box to disable it and play with more complicate situation.

Embed a running copy of this simulation

Embed a running copy link(show simulation in a popuped window)
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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.
  • 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!

* static equilibrium.gif (14.51 KB, 887x426 - viewed 369 times.)
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