Conservation of mechanical energy (potential energy + kinetic energy) discussed in a class given at MIT by Prof. Walter Lewin (course 8.01, Physics I: Classical Mechanics, fall 1999). Motion of car in a loop explained at 23:50, with a (deadly) amusing experiment at 45:40.

Topics covered in this lecture:

Work – Conservative forces – Potential energy – Kinetic energy – Mechanical energy

(Young and Freedman, chap. 6)

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