Friction: Crash Course Physics #6 PDF Print E-mail
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Written by Thatcha Namnon   
Tuesday, 06 September 2016 14:59

About Static and Kinetic friction; how they work and how they're different.


ที่มา : www.youtube.com อัพโหลดโดย  CrashCourse
Last Updated on Tuesday, 06 September 2016 15:32
 

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