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Unformatted text preview: vector into components parallel and perpendicular to the velocity vector. Instantaneously, the parallel component oF acceleration afects only speed (increasing speed iF parallel to velocity, decreasing speed iF antiparallel), and the perpendicular component afects only the direction oF the velocity vector. In general, however, these quantities change with time, so this analysis only makes sense iF considered over a very short time interval. ±or example, iF the acceleration vector is constant in time but not parallel to the velocity vector, then the direction and magnitude oF the velocity vector change with time, and so the components oF acceleration (with respect to the velocity vector) change with time as well (even though their vector sum stays the same). Total Points for Problem: 2 Points...
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This note was uploaded on 05/04/2008 for the course PHYS 2054 taught by Professor Stewart during the Spring '08 term at Arkansas.
 Spring '08
 Stewart
 Physics, Work

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