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Main Question or Discussion Point
My question is about vector addition in cylindrical coordinates:
Let A = 2x + y, B = x + 2y. In rectangular coordinates, AB = BA = x+y
In cylindrical coordinates, x=rcosθ + θsinθ, y=rsinθ + θcosθ
A =Axx + Ayy, B =Bxx + Byy
Ar = Ax(x.r) + Bx(y.r)=2.236, Aθ = 0. So A = 2.236r
Br = 2.236, Bθ = 0. So B = 2.236r
How do you do vector addition in cylindrical coordinates? A + B = 2.236r +2.236r !!!!!
Attached is the hand written file for clearer description.
I don't know how to add the two vectors totally in cylindrical coordinates because the angle information is not apparant. Please tell me what am I doing wrong.
Thanks
Let A = 2x + y, B = x + 2y. In rectangular coordinates, AB = BA = x+y
In cylindrical coordinates, x=rcosθ + θsinθ, y=rsinθ + θcosθ
A =Axx + Ayy, B =Bxx + Byy
Ar = Ax(x.r) + Bx(y.r)=2.236, Aθ = 0. So A = 2.236r
Br = 2.236, Bθ = 0. So B = 2.236r
How do you do vector addition in cylindrical coordinates? A + B = 2.236r +2.236r !!!!!
Attached is the hand written file for clearer description.
I don't know how to add the two vectors totally in cylindrical coordinates because the angle information is not apparant. Please tell me what am I doing wrong.
Thanks
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