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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Aug 28, 2008

Homework Problem 2/132


Note that this problem is very similar to an example worked out in Wednesday's lecture. The steps that we followed in that solution are as follows:
  1. Determine x_dot and y_dot. From this, we write the velocity of the pin as: v = x_dot*i + y_dot*j.
  2. Determine x_dot_dot and y_dot_dot. From this we write the acceleration of the pin as: a = x_dot_dot*i + y_dot_dot*j.
  3. The rate of change of speed, v_dot, is found by the projection of the acceleration a onto the e_t direction: v_dot = a • (v/|v|) .
  4. The radius of curvature can be found from the magnitude of the acceleration equation in path coordinates: |a|^2 = (v_dot)^2 + (v^2/rho)^2.
The steps that you follow on this problem will be the same.

Let us know if you have questions on this.
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