NTNUJAVA Virtual Physics Laboratory
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A man paints with his brains and not with his hands. ..."Michelangelo (1475-1564, Italian sculptor, painter, architect and poet)"
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Author Topic: Air drag  (Read 3430 times)
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ahmedelshfie
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on: May 23, 2011, 05:50:05 pm » posted from:Uberaba,Minas Gerais,Brazil

The applet design by prof Hwang, modified by Ahmed.
Original applet found at Air drag

Assume a well air sealed piston system:
The initial pressure is P(0), Volume is V(0), initial speed is v(0).
There is a mass with weight W=mg on top of the sealed piston (assume the piston can move freely).
The piston will move down due to external force from weight of the object, so the volume will decrease to V,  the drag force is the air pressure P=P(0)V(0)/V.

The piston will move down until the pressure force is larger than weight of the object and the object will be de-accelerated to speed V=0. (the simulation is paused when it reach this condition).

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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!


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