Finding the resultant graphically

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Homework Help Overview

The discussion revolves around finding the resultant vector graphically, focusing on vector addition and representation. Participants explore how to visualize and measure vectors to determine their resultant without relying on numerical values for each vector's length.

Discussion Character

  • Exploratory, Conceptual clarification, Problem interpretation

Approaches and Questions Raised

  • Participants discuss the graphical method of vector addition, including moving vectors and drawing resultant lines. Questions arise about how to measure the resultant when the lengths of the vectors are unknown, and there is exploration of different shapes, such as triangles and squares, in relation to vector representation.

Discussion Status

The conversation is active, with participants providing guidance on how to graphically determine the resultant vector. There are multiple interpretations of how to represent the vectors, and some participants express uncertainty about measuring the resultant when specific lengths are not known.

Contextual Notes

Participants mention constraints related to the graphical method, such as the need for accurate measurements and the potential complexity of the vector shapes involved. There is also a reference to prior learning in trigonometry, indicating a mix of familiarity and uncertainty with the topic.

kiraahhh
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http://tinypic.com/r/2gsfm37/7"


I would show work, but I am not sure how to even approach this, please help! Thank you!
 
Last edited by a moderator:
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Move the point at which the e vector begins and put it at the end of the arrow of the F vector. Draw a line from the point the F vector begins to the end of the arrow on the E vector. Put a nice little Arrow at the end of the line you just drew by the end of the E vector, and that is your resultant vector. Make sense?

edit: your vectors will kinda look like this: _/, where F is the flat vector and E is the /. Your resultant will be the line that goes from the origin of both vectors in the beginning, and end at the tip of the moved E vector.
 
Last edited:
no. Excuse the crude use of mspaint.
It'll look like:
problem.jpg


technically you don't need the Left E vector and top F vector. You see how I just moved the E vector over to the F vector? and drew the resultant from beginning to E's tip.
 
ohh! I remember learning this in trig last year!
but, how do i do this when I don't know how long each side is?
 
Graphically. Use a ruler and find out how long they are. Graphical method is proportionate.
 
so if i have 9.5 & 5.5 how do i find the resultant? I completely forgot over this summer
 
draw it all out, and measure the resultant. the distance you measured is the resultant. ie, if F=80n and it's 8cm long, that's 10n/cm. You draw it all out to scale, measure the resultant. and 10n/cm*R= Resultant force.
 
  • #10
kiraahhh said:
what if its more of a square? like this
http://tinypic.com/r/53k6ro/7
do you make it into a square and draw the resultant and measure?
You draw the resultant just as you were shown in Post #4 earlier. And yes, then you would measure the resultant.
 
  • #11
Thank you very much hansthegerman and redbelly98, I really do appreciate the help
 

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