Rotational Dynamics
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Rotational Dynamics

        

Rotational Dynamics

Logo for Rotational Dynamics
An Atwood machine for demonstrating the relationship between an unbalanced torque and rotational acceleration. The rope connecting each mass is wrapped around a pulley at different radii, which are user-defined. Extensive explanatory text included.
Material Type: Simulation
Technical Format: Java Applet
Date Added to MERLOT: May 09, 2000
Date Modified in MERLOT: May 08, 2007
Author:
Send email to wupfrgaa@sc.ehu.es
Submitter: John Walkup

Quality

  • Reviewed by members of Editorial board for inclusion in MERLOT.
    Editor Review (not reviewed)
  • User review 4 average rating
  • User Rating: 4 user rating
  • Discussion (3 Comments)
  • Learning Exercises (1)
  • Personal Collections (none)
  • Accessibility Info (none)

About

Primary Audience: College General Ed
Mobile Compatibility: Not specified at this time
Language: Spanish
Cost Involved: no
Source Code Available: no
Accessiblity Information Available: no
Creative Commons: unsure

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Discussion for Rotational Dynamics

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Avatar for Barbra Bied Sperling
11 years ago

Barbra Bied Sperling (Staff)

In reviewing John Walkup's assignment that uses this applet, I obviously have
become familiar with the applet. It has some nice features, but a few defects.
First, although it is possible to set the radius of the inner pulley, nowhere
that I could find is a statement of the size of the outer radius. (It may be
buried in the extensive discussion of the system, which is in Spanish.) Second,
the value of the unknown moment of inertia of the pulley (obtained via the
"Resultado" button) has no units, but in fact is in kg-m^2. This could be very
confusing, because the given quantities are expressed in terms of centimeters
and grams.
Used in course

Avatar for Kara Morgan
14 years ago

Kara Morgan (Student)

this is a good site, though the language difference complicates a rather simple
idea.
kmorgan

Avatar for John Walkup
14 years ago

John Walkup (Staff)

There are many similar applets, but this one has the benefit of very nice graphics and an extensive discussion, albeit in Spanish.