Before-and-after pictorial representation•Define the system.•Use two drawings to show the system beforeand afterthe interaction.•List known information and identify whatyou are trying to find.collisionimpulsive forcemomentum, impulse, Jxprimpulse-momentum theoremmomentum bar chartimpulse approximationtotal momentum, Prisolated systemlaw of conservation of momentumperfectly inelastic collisionexplosionSUMMARYThe goals of Chapter 9 have been to introduce the ideas of impulse and momentum and to learn a new problem-solving strategy based on conservation laws.General PrinciplesLaw of Conservation of MomentumThe total momentum of an isolated system isa constant. ThusNewton’s Second LawIn terms of momentum, Newton’s second law isFr5dprdtPrf5PriPr5pr11pr21cSolving Momentum Conservation ProblemsMODELChoose an isolated system or a system that is isolatedduring at least part of the problem.
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This note was uploaded on 09/26/2010 for the course PHYS 021 taught by Professor Dick during the Spring '08 term at GWU.