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Adding 3 Vectors?
I am given Vector A which has a magnitude of 12, Vector B which has a magnitude of 5, and Vector C which has a magnitude of 8. I am given that the angle between Vector A and Vector B is 30 degrees and that the angle between Vector B and Vector C is 80 degrees. All angles are counterclockwise and Vector A is the HORIZONTAL..
I have to find the magnitude of |A+B-C| and the angle, relative to Vector A
Cosine and Sine Law
What I did was added A and B first using an angle of 150 degrees in the cos law. This gave me an answer of 16.52... However from here I flip Vector C and draw the resultant from there... However I do not know what the angle opposite from the resultant of (A+B) + (-C)
Please give me some guidance
Homework Statement
I am given Vector A which has a magnitude of 12, Vector B which has a magnitude of 5, and Vector C which has a magnitude of 8. I am given that the angle between Vector A and Vector B is 30 degrees and that the angle between Vector B and Vector C is 80 degrees. All angles are counterclockwise and Vector A is the HORIZONTAL..
I have to find the magnitude of |A+B-C| and the angle, relative to Vector A
Homework Equations
Cosine and Sine Law
The Attempt at a Solution
What I did was added A and B first using an angle of 150 degrees in the cos law. This gave me an answer of 16.52... However from here I flip Vector C and draw the resultant from there... However I do not know what the angle opposite from the resultant of (A+B) + (-C)
Please give me some guidance