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h1. Two-Dimensional Motion (General)


h4. Description and Assumptions
{excerpt:hidden=true}{*}System:* One [point particle|point particle] confined to a plane. --- *Interactions:* Any that respect the planar motion. {excerpt}
This model is placed in the hierarchy for intellectual completeness. It is not frequently needed in introductory mechanics, as problems involving kinematics will usually involve situations constrained to fit into one of the submodels of this model.

Situations in which motion does take place in two or three dimensions are treated by separating the forces, velocities, acceperations, and positions into their components along the x- y- and z- directions and solving these independently, thus transforming them into a collection of problems in one-dimensional motion.
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