Identify the external conservative and nonconservative
Chapter 6, Problem 6.39(choose chapter or problem)
Identify the external conservative and nonconservative forces that act on the object. For this principle to apply, the total work done by nonconservative forces must be zero, Wnc 0 J. A nonconservative force that is perpendicular to the displacement of the object does no work, for example.
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