Welcome to the website of ME 274 for the Fall 2008 semester. On this site you can view blog posts, add your own blog posts and add comments to existing posts. In addition to the blog are links to course material: course information, information on solution videos, exams, quizzes, homeworks and other course-related material. Direct links to the homework solution videos are also available on the left side of this page.


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Jul 30, 2008

Problem 6.125

I was doing out this problem for practice and was wondering why the wheel attached to the end of the links doesn't effect the answer? I would assume that a really heavy wheel with a large MMI would cause the angular velocity to be decreased, but this doesn't seem to be the case. The only thing i can think of is that once the wheel is rolling the force propels the wheel without slowing down the links, but that seems like a pretty out-there assumption. I used Work-Energy so i assumed the velocity of the wheel would be included but it isn't.
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1 comment:

Alex said...

I think the reason is that the only forces acting on the wheel are either through its center (meaning no moment) or through its no slip point with 0 velocity (meaning no work is done by it)

July 30, 2008 at 11:03 AM

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