Minimum distance between two vectors on a graph?

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SUMMARY

The discussion focuses on calculating the minimum distance between two vectors with constant velocity on a graph. Participants suggest using the position difference vector as a function of time to determine this minimum distance. Graphical methods are also mentioned, but extending the position vectors alone does not adequately address the minimization of the position difference vector. The conversation emphasizes the importance of considering both magnitude and direction in the analysis.

PREREQUISITES
  • Understanding of vector mathematics and operations.
  • Familiarity with concepts of velocity and direction in physics.
  • Knowledge of graphical representation of vectors.
  • Basic calculus for analyzing functions of time.
NEXT STEPS
  • Study vector calculus to understand position difference vectors.
  • Learn about optimization techniques in physics for minimizing distances.
  • Explore graphical methods for vector analysis, including vector addition and subtraction.
  • Investigate the use of parametric equations to represent motion over time.
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Students in physics or mathematics, particularly those tackling vector analysis and optimization problems, as well as educators looking for methods to teach these concepts effectively.

dan.g117
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Homework Statement


This is just a theoretical question so there aren't any values for the variables but there are two vectors with constant velocity. Given their velocity, magnitude, direction how can one calculate the minimum distance between the two vectors.

Also have to solve graphically


Homework Equations





The Attempt at a Solution


I'm currently under the assumption it has to do with slope or something along those lines.
Input greatly appreciated.

http://img22.imageshack.us/my.php?image=examplehr3.jpg

thanks!
 
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Welcome to PF.

Algebraically you can take the position difference vector as a function of time and determine the minimum.

Graphically ... just extending the line of action of position vectors doesn't seem to solve the problem you are asking about minimizing the position difference vector. A position graph alone doesn't really account for the rate of change of position as a function of time.
 

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