Illinois PER Interactive Examples: Forces

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written by Gary Gladding
published by the University of llinois Physics Education Research Group

This is an interactive homework problem for introductory physics students relating to vector addition. Given a free-body diagram depicting three forces acting on an object, students are required to find the magnitude of the net force. A user-activated "help" sequence is provided for each step of the problem-solving, from conceptual analysis through quantitative calculations. Immediate feedback is received for both correct and incorrect responses.

This item is part of a larger collection of interactive homework problems for introductory physics. See Related items on this page for a link to the full collection.

https://ie.per.physics.illinois.edu/per/ie/ie.pl?phys111/ie/03/ie_...

Subjects	Levels	Resource Types
Classical Mechanics - Newton's Second Law = Force, Acceleration Education Practices - Active Learning = Problem Solving Mathematical Tools - Vector Algebra	- Lower Undergraduate - High School	- Instructional Material = Activity = Best practice = Tutorial

Intended Users	Formats	Ratings
- Learners	- text/html	Currently 0.0/5 Want to rate this material? Login here!

Access Rights:: Free access
Restriction:: © 2006 University of Illinois Physics Education Research Group
Keywords:: forces, free-body diagram, homework problems, interactive homework, net force, problem solving, vector addition, vectors
Record Cloner:: Metadata instance created January 28, 2008 by Alea Smith
Record Updated:: February 22, 2025 by Lyle Barbato
Last Update when Cataloged:: August 30, 2014
Other Collections:: The Physics Front

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Record Link

<a href="https://www.compadre.org/introphys/items/detail.cfm?ID=6401">Gladding, Gary. Illinois PER Interactive Examples: Forces. Urbana: University of llinois Physics Education Research Group, August 30, 2014.</a>

AIP Format

G. Gladding, (University of llinois Physics Education Research Group, Urbana, 2006), WWW Document, (https://ie.per.physics.illinois.edu/per/ie/ie.pl?phys111/ie/03/ie_forces).

AJP/PRST-PER

G. Gladding, Illinois PER Interactive Examples: Forces (University of llinois Physics Education Research Group, Urbana, 2006), <https://ie.per.physics.illinois.edu/per/ie/ie.pl?phys111/ie/03/ie_forces>.

APA Format

Gladding, G. (2014, August 30). Illinois PER Interactive Examples: Forces. Retrieved March 23, 2025, from University of llinois Physics Education Research Group: https://ie.per.physics.illinois.edu/per/ie/ie.pl?phys111/ie/03/ie_forces

Chicago Format

Gladding, Gary. Illinois PER Interactive Examples: Forces. Urbana: University of llinois Physics Education Research Group, August 30, 2014. https://ie.per.physics.illinois.edu/per/ie/ie.pl?phys111/ie/03/ie_forces (accessed 23 March 2025).

MLA Format

Gladding, Gary. Illinois PER Interactive Examples: Forces. Urbana: University of llinois Physics Education Research Group, 2006. 30 Aug. 2014. 23 Mar. 2025 <https://ie.per.physics.illinois.edu/per/ie/ie.pl?phys111/ie/03/ie_forces>.

BibTeX Export Format

@misc{ Author = "Gary Gladding", Title = {Illinois PER Interactive Examples: Forces}, Publisher = {University of llinois Physics Education Research Group}, Volume = {2025}, Number = {23 March 2025}, Month = {August 30, 2014}, Year = {2006} }

Refer Export Format

%A Gary Gladding %T Illinois PER Interactive Examples: Forces %D August 30, 2014 %I University of llinois Physics Education Research Group %C Urbana %U https://ie.per.physics.illinois.edu/per/ie/ie.pl?phys111/ie/03/ie_forces %O text/html

EndNote Export Format

%0 Electronic Source %A Gladding, Gary %D August 30, 2014 %T Illinois PER Interactive Examples: Forces %I University of llinois Physics Education Research Group %V 2025 %N 23 March 2025 %8 August 30, 2014 %9 text/html %U https://ie.per.physics.illinois.edu/per/ie/ie.pl?phys111/ie/03/ie_forces

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

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