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Thursday, May 3, 2012

Check out Rotating Pulleys

Check out how to find the TWO tensions in the same rope for a real, spinning pulley problem. The video is here. Also, check out small oscillations (like a pendulum) here, or a more complicated one here.


  1. Hi Mark, we are following your posts and would like to talk to you about a few opportunities to join forces on our STEM education workshops and initiatives. I work as a volunteer at board and think our organization has faced the same challenges you are writing about since 2009. Please let us know what is the best way to contact you. Our email is: website [at]
    Thank you!

  2. Thank you for your interest. The best way to contact me is