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Communication of the week:

  • 2018.12.05: "do you realize how amazing your teaching style is? You are giving me a genuine understanding of the formulas I have just been plugging numbers into for class! All college physics 1 lectures need to be replaced with your videos and the money given to you to make videos for all of physics!" Helan - YouTube Comment
Did you know I teach part-time to allow time to make these Flipping Physics videos? That is because it takes a tremendous amount of time to make videos of high caliber. Yep, I am in the classroom 40% of the time of a full-time teacher. That means I make 40% of the salary a full-time teacher. Can you imagine that? So realize, yes, I provide all the videos for free. This is because there are many people on this planet who cannot afford high quality education like this. However, if you can afford to, especially if you are assigning my videos for students to learn from, please pledge me a few dollars a month on Patreon. If not, there are other ways to help out as well. Thanks.
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Most Recent Video (2018.12.16)
Introductory Rotational Equilibrium Problem (10:24)
A uniform 0.093 kg meterstick is supported at the 15 cm and 92 cm marks. When a 0.250 kg object is placed at the 6.0 cm mark, what are the magnitudes of the forces supporting the meterstick?
This is an AP Physics 1 Topic.

Content Times:
0:07 The problem
1:35 Summing the forces
2:55 Summing the torques
5:17 Combining equations
6:04 Torque distances
7:14 The units!!
8:20 Finding Force Normal 1
9:26 Testing our answers
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  • Thank you Scott Carter, Christopher Becke, and Faiaz Rahman for being my Quality Control Team for this video.