Help with Vector Addition and Subtraction using Head-to-Tail Method

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The discussion focuses on a homework problem involving vector addition and subtraction using the head-to-tail method. The vectors A and B are given with specific magnitudes and angles, and the task requires sketching them on graph paper. Participants clarify that the solution should be graphical rather than using trigonometric functions. The original poster expresses confusion about how to begin the sketches and apply the head-to-tail method effectively. Clear guidance is requested on starting the sketches and measuring the resultant vectors.
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Please Help?Preliminary Problem

1. Homework Statement
Two vectors A and B are defined as follows, A(10cm, 35degrees) and B(8cm,110degrees). Use a protractor, a ruler and graph papers to do this exercise. The lines must be drawn to scale.

a. Sketch vector A and sketch vector B using the same origin.
b. Use a different graph paper for this exercise. Use the head to tail method to sketch R=A+B. Measure the magnitude and direction of R using your ruler and protractor and record them on your sketch.
c. Use a different graph paper for this exercise. Use the head to tail method to sketch R=A-B. Measure the magnitude and direction of R using your ruler and protractor and record them on your sketch.

2. Homework Equations

im not sure...


3. The Attempt at a Solution

so do i just do add or subtract the degrees and use the cos and sin format to do it and how do i suppose to do this...I am really stuck and confuse...to be honest, my mind is blank
 
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mz2011grad said:
1. Homework Statement
Two vectors A and B are defined as follows, A(10cm, 35degrees) and B(8cm,110degrees). Use a protractor, a ruler and graph papers to do this exercise. The lines must be drawn to scale.

a. Sketch vector A and sketch vector B using the same origin.
b. Use a different graph paper for this exercise. Use the head to tail method to sketch R=A+B. Measure the magnitude and direction of R using your ruler and protractor and record them on your sketch.
c. Use a different graph paper for this exercise. Use the head to tail method to sketch R=A-B. Measure the magnitude and direction of R using your ruler and protractor and record them on your sketch.

2. Homework Equations

im not sure...


3. The Attempt at a Solution

so do i just do add or subtract the degrees and use the cos and sin format to do it and how do i suppose to do this...I am really stuck and confuse...to be honest, my mind is blank

No, you don't use trig functions. You use graph paper to solve these graphically.

Show us your sketch for the first question. Then show how you can draw A+B with the head-to-tail method.
 


my mind is blank...how do i start like how :-(
 


mz2011grad said:
my mind is blank...how do i start like how :-(

a. Sketch vector A and sketch vector B using the same origin.
 

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