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Classical Mechanics | Lecture 3

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Published on Dec 15, 2011 by

(October 10, 2011) Leonard Susskind discusses lagrangian functions as they relate to coordinate systems and forces in a system.

This course is the beginning of a six course sequence that explores the theoretical foundations of modern physics. Topics in the series include classical mechanics, quantum mechanics, theories of relativity, electromagnetism, cosmology, and black holes.

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  • it's just the chain rule seeing as v is a function of x: dL(x,v)/dx= dL/dx+ (dL/dv)*(dv/dx)

    The d's above should be partials though, and just wrote it with x and v to make it clearer (hopefully!)

  • I don't understand how he gets the derivative of the second expression at 44:18..

  • We're finished with that i!!!

  • woop, more susskind lectures!

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