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written by Fu-Kwun Hwang
This Java applet measures braking distance and reaction time for stopping a car. Initial velocity is controlled by the user, and the coefficient of friction can be set from 0 to 1.5 to simulate varying road conditions. Once initial parameters are set, click "Start", then click "Brake" when you see the light turn yellow. Did you set a safe speed for the road conditions, or did you run the red light?

Editor's Note: This simulation can be adapted for a wide range of age groups and course levels since its pre-set parameters include constant initial velocity.
Subjects Levels Resource Types
Classical Mechanics
- Applications of Newton's Laws
= Friction
- Motion in One Dimension
= Velocity
- High School
- Lower Undergraduate
- Instructional Material
= Interactive Simulation
Appropriate Courses Categories Ratings
- Physical Science
- Physics First
- Conceptual Physics
- Algebra-based Physics
- Activity
- Laboratory
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© 2001 Fu-Kwun Hwang
friction coefficient, reaction time
Record Cloner:
Metadata instance created November 23, 2007 by Alea Smith
Record Updated:
January 11, 2012 by Caroline Hall
Last Update
when Cataloged:
October 6, 2006
ComPADRE is beta testing Citation Styles!

Record Link
AIP Format
F. Hwang, (2001), WWW Document, (http://www.phy.ntnu.edu.tw/ntnujava/index.php?topic=387.0).
F. Hwang, NTNU Java: Reaction time measurement, (2001), <http://www.phy.ntnu.edu.tw/ntnujava/index.php?topic=387.0>.
APA Format
Hwang, F. (2006, October 6). NTNU Java: Reaction time measurement. Retrieved January 25, 2022, from http://www.phy.ntnu.edu.tw/ntnujava/index.php?topic=387.0
Chicago Format
Hwang, Fu-Kwun. NTNU Java: Reaction time measurement. October 6, 2006. http://www.phy.ntnu.edu.tw/ntnujava/index.php?topic=387.0 (accessed 25 January 2022).
MLA Format
Hwang, Fu-Kwun. NTNU Java: Reaction time measurement. 2001. 6 Oct. 2006. 25 Jan. 2022 <http://www.phy.ntnu.edu.tw/ntnujava/index.php?topic=387.0>.
BibTeX Export Format
@misc{ Author = "Fu-Kwun Hwang", Title = {NTNU Java: Reaction time measurement}, Volume = {2022}, Number = {25 January 2022}, Month = {October 6, 2006}, Year = {2001} }
Refer Export Format

%A Fu-Kwun Hwang %T NTNU Java: Reaction time measurement %D October 6, 2006 %U http://www.phy.ntnu.edu.tw/ntnujava/index.php?topic=387.0 %O application/java

EndNote Export Format

%0 Electronic Source %A Hwang, Fu-Kwun %D October 6, 2006 %T NTNU Java: Reaction time measurement %V 2022 %N 25 January 2022 %8 October 6, 2006 %9 application/java %U http://www.phy.ntnu.edu.tw/ntnujava/index.php?topic=387.0

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The AIP Style presented is based on information from the AIP Style Manual.

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