A as Sum of B & C: Vector Diagrams

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Homework Help Overview

The discussion revolves around identifying which vector diagram correctly represents vector "A" as the sum of vectors "B" and "C" (A = B + C). The context involves graphical vector addition and the interpretation of resultant vectors.

Discussion Character

  • Conceptual clarification, Problem interpretation

Approaches and Questions Raised

  • Participants explore the graphical addition of vectors and the significance of the resultant vector. Questions arise regarding the correct interpretation of the diagrams and the relationship between the vectors.

Discussion Status

Some participants have offered insights into the graphical addition of vectors, while others are questioning the assumptions about the diagrams and the meaning of the resultant vector. Multiple interpretations of the vector diagrams are being explored.

Contextual Notes

There is a lack of specific equations provided, and participants are discussing the implications of the graphical representation without reaching a consensus on which diagram is correct.

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Homework Statement


Which of the following vector diagrams represent "A" as a sum of "B" and "C". (A=B+C)

http://img402.imageshack.us/img402/94/vectorsnj3.jpg​

Homework Equations



None that I know of.

The Attempt at a Solution



I think the answer is number 1, because A is the hypotenuse.
 
Last edited by a moderator:
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Consider:
How do you graphically add one vector to another?
 
Well actually, you can add vectors graphically because the resultant vector, which in this case is the hypotenuse, is equal to the sum of both legs of the triangle.
 
It is not the case of whether you CAN add vectors graphically together, but what that addition operation means, the relationship between the resultant vector and those two, and which of the pictures provides a correct description.

One does that, and hypotenuses (hypotenusi?, hypotena??) have nothing at all to do with it.
 

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