The following simulation try to illustrate why the friction force does not depends on macro-scopic area.
However, it does depends on microscope contact area.

The multiplication of width(w) and height(h) are kept constant. w*h=A=constant.

When the width is educed, the height increase (so the pressure increase).

A new function has been added: you can drag spring to change the external force acting on the object.

I need feedback from you! Thank you in advance!
;D

Click the eye (image) to display the simulation
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/htdocs/ntnujava/ejsuser/2/users/ntnu/fkh/frictionMicro2_pkg/frictionMicro2.propertiesFull screen applet or Problem viewing java?Add http://www.phy.ntnu.edu.tw/ to exception site list
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
Download EJS jar file(977.1kB):double click downloaded file to run it. (2 times by 2 users) , Download EJS source View EJS source
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