Find Parallel Component of Vector B to Vector A | Basic Unit Vector Help

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SUMMARY

The discussion focuses on calculating the component of vector B that is parallel to vector A, where vector B has components (2, 6) and vector A is defined as 3i + 4j. The key equation referenced is S(A) = B, which indicates the relationship between the two vectors. Participants emphasize the need for clarity on how to derive the parallel component, particularly when the vectors are not multiples of each other. A straightforward example or equation is requested to facilitate understanding.

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  • Understanding of vector components in Cartesian coordinates
  • Familiarity with unit vectors i-hat and j-hat
  • Knowledge of vector addition and scalar multiplication
  • Basic grasp of vector projections
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RWirth91
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Homework Statement



Vector B has x- and y-components 2 and 6, respectively. Compute the component of B that is parallel to A.

A is 3i+4j

Homework Equations



The basic S(A)=B is all I know.

The Attempt at a Solution



No clue. Was absent yesterday. (Which is why I need help, lol.)
 
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what do you know about i-hat and j-hat .let me give you example from your question A is 3i + 4j .so which means 3 unit to the right and 4 unit up which actualy mean X- and Y- components .so according to this figure out what is 2 and 6 ...Read your textbook for more information
 
I don't think you understood the question I asked. I know that the axis are represented as I J & K, and that the equation is basically the coordinates for a point. I can find the magnitude, angle, and components to a basic vector or a resultant; I don't understand how to calculate a parallel vector between an existing vector and a component of a second.

Edit: A simple equation or example would help greatly, I just don't understand how you could apply S(A)=B to binomials that aren't multiples.
 
Last edited:

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