APS Excellence in Physics Education Award
November 2019

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Science SPORE Prize
November 2011

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The Open Source Physics Project is supported by NSF DUE-0442581.

Computer Program Detail Page

Item Picture
Person Landing After a Jump
written by Aaron Titus
This lab uses Tracker to measure and analyze the center of mass motion of a person landing after a jump. Students measure the acceleration of the person in free-fall and his acceleration while he is landing and slowing down. Students use the data to calculate the force of impact by the floor on the student during the landing. There are two video files:  (1) the student bends his knees a maximum amount during the landing in order to decrease the force of impact by the floor; and (2) the student bends his knees a small amount in order to increase the force of impact on the floor.

The trz file contains two videos: (1) a long time interval during the landing and (2) a short time interval during the landing. The videos were recorded by Aaron Titus at High Point University.

The videos can be used with other video analysis software; however, the handout has screen captures from Tracker and instructions specifically written for Tracker.
1 supplemental document is available
Subjects Levels Resource Types
Classical Mechanics
- Linear Momentum
= Collisions in Two Dimensions
- Motion in Two Dimensions
= 2D Velocity
= Center of Mass
Education Practices
- Active Learning
= Modeling
- Lower Undergraduate
- Middle School
- High School
- Instructional Material
= Activity
= Laboratory
= Tutorial
- Audio/Visual
= Movie/Animation
Intended Users Formats Ratings
- Learners
- Educators
- video/quicktime
- application/pdf
- application/zip
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Access Rights:
Free access
This material is released under a Creative Commons Attribution-Noncommercial-Share Alike 3.0 license.
Rights Holder:
Aaron Titus
center of mass, constant acceleration, tracker, video analysis, video lab
Record Cloner:
Metadata instance created June 29, 2011 by Aaron Titus
Record Updated:
April 25, 2023 by Douglas Brown
Last Update
when Cataloged:
April 25, 2023
ComPADRE is beta testing Citation Styles!

Record Link
AIP Format
A. Titus, Computer Program PERSON LANDING AFTER A JUMP (2011), WWW Document, (https://www.compadre.org/Repository/document/ServeFile.cfm?ID=11285&DocID=2308).
A. Titus, Computer Program PERSON LANDING AFTER A JUMP (2011), <https://www.compadre.org/Repository/document/ServeFile.cfm?ID=11285&DocID=2308>.
APA Format
Titus, A. (2011). Person Landing After a Jump [Computer software]. Retrieved July 15, 2024, from https://www.compadre.org/Repository/document/ServeFile.cfm?ID=11285&DocID=2308
Chicago Format
Titus, Aaron. "Person Landing After a Jump." https://www.compadre.org/Repository/document/ServeFile.cfm?ID=11285&DocID=2308 (accessed 15 July 2024).
MLA Format
Titus, Aaron. Person Landing After a Jump. Computer software. 2011. 15 July 2024 <https://www.compadre.org/Repository/document/ServeFile.cfm?ID=11285&DocID=2308>.
BibTeX Export Format
@misc{ Author = "Aaron Titus", Title = {Person Landing After a Jump}, Month = {April}, Year = {2023} }
Refer Export Format

%A Aaron Titus %T Person Landing After a Jump %D April 25, 2023 %U https://www.compadre.org/Repository/document/ServeFile.cfm?ID=11285&DocID=2308 %O video/quicktime

EndNote Export Format

%0 Computer Program %A Titus, Aaron %D April 25, 2023 %T Person Landing After a Jump %8 April 25, 2023 %U https://www.compadre.org/Repository/document/ServeFile.cfm?ID=11285&DocID=2308

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