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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 Newton's Second Law and tension force.  Two strings are attached to walls, with the left string being horizontal and the right string forming an angle of 50° with the horizontal.  A block of known mass hangs from a ring attached to both strings. Students must determine the tension in the left string.  A user-activated "help" sequence is provided for each step of the problem-solving, including conceptual analysis, free body diagrams, and quantitative calculation.  Immediate feedback is received for both correct and incorrect responses.    
See Related Materials for a link to the full collection of problems by the same author.
Editor's Note: We like this resource because it gives learners a risk-free environment to explore a multi-step problem involving forces in two dimensions. The easy pacing will appeal to beginners who may at first be overwhelmed by the number of steps. Even the corrective feedback is gentle and encouraging.
Subjects Levels Resource Types
Classical Mechanics
- Newton's Second Law
= Force, Acceleration
= Interacting Objects
Education Practices
- Active Learning
= Problem Solving
- High School
- Lower Undergraduate
- Instructional Material
= Activity
= Best practice
= Problem/Problem Set
= Tutorial
Appropriate Courses Categories Ratings
- Conceptual Physics
- Algebra-based Physics
- AP Physics
- Activity
- Assessment
- New teachers
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Intended User:
Learner
Format:
text/html
Access Rights:
Free access
Restriction:
© 2006 University of Illinois Physics Education Research Group
Keywords:
Newton's Second Law, tension
Record Cloner:
Metadata instance created January 28, 2008 by Alea Smith
Record Updated:
November 12, 2014 by Caroline Hall
Last Update
when Cataloged:
June 16, 2006
Other Collections:

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Record Link
AIP Format
G. Gladding, (University of llinois Physics Education Research Group, Urbana, 2006), WWW Document, (http://per.physics.illinois.edu/per/IE/ie.pl?phys111/ie/03/IE_two_strings).
AJP/PRST-PER
G. Gladding, Illinois PER Interactive Examples: Mass on Two Strings, (University of llinois Physics Education Research Group, Urbana, 2006), <http://per.physics.illinois.edu/per/IE/ie.pl?phys111/ie/03/IE_two_strings>.
APA Format
Gladding, G. (2006, June 16). Illinois PER Interactive Examples: Mass on Two Strings. Retrieved November 23, 2014, from University of llinois Physics Education Research Group: http://per.physics.illinois.edu/per/IE/ie.pl?phys111/ie/03/IE_two_strings
Chicago Format
Gladding, Gary. Illinois PER Interactive Examples: Mass on Two Strings. Urbana: University of llinois Physics Education Research Group, June 16, 2006. http://per.physics.illinois.edu/per/IE/ie.pl?phys111/ie/03/IE_two_strings (accessed 23 November 2014).
MLA Format
Gladding, Gary. Illinois PER Interactive Examples: Mass on Two Strings. Urbana: University of llinois Physics Education Research Group, 2006. 16 June 2006. 23 Nov. 2014 <http://per.physics.illinois.edu/per/IE/ie.pl?phys111/ie/03/IE_two_strings>.
BibTeX Export Format
@misc{ Author = "Gary Gladding", Title = {Illinois PER Interactive Examples: Mass on Two Strings}, Publisher = {University of llinois Physics Education Research Group}, Volume = {2014}, Number = {23 November 2014}, Month = {June 16, 2006}, Year = {2006} }
Refer Export Format

%A Gary Gladding
%T Illinois PER Interactive Examples: Mass on Two Strings
%D June 16, 2006
%I University of llinois Physics Education Research Group
%C Urbana
%U http://per.physics.illinois.edu/per/IE/ie.pl?phys111/ie/03/IE_two_strings
%O text/html

EndNote Export Format

%0 Electronic Source
%A Gladding, Gary
%D June 16, 2006
%T Illinois PER Interactive Examples: Mass on Two Strings
%I University of llinois Physics Education Research Group
%V 2014
%N 23 November 2014
%8 June 16, 2006
%9 text/html
%U http://per.physics.illinois.edu/per/IE/ie.pl?phys111/ie/03/IE_two_strings


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Illinois PER Interactive Examples: Mass on Two Strings:

Is Part Of Illinois PER: Interactive Examples

This is the full collection of homework problems by the same author.  It contains six comprehensive problem sets classified by course level.

relation by Caroline Hall

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