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# Vectors in Physics

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The problem says that vector B has a magnitude of 35 m and points in a direction 55∘ below the positive x axis, so does this mean that when finding the x and y components of vector B, when I use Bx = B cos(ø) and By = B sin(ø) (Bx and By are the x and y components), should I input the magnitude of B as -35m, because it is going down on the x axis?

Resuwen  Nov 2, 2015
edited by Guest  Nov 2, 2015

### Best Answer

#1
+78557
+10

< x, y >   = < 35cos(-55), 35sin(-55) >  =  < 20.08 , -28.67 >

CPhill  Nov 2, 2015
edited by CPhill  Nov 2, 2015
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### 1+0 Answers

#1
+78557
+10
Best Answer

< x, y >   = < 35cos(-55), 35sin(-55) >  =  < 20.08 , -28.67 >

CPhill  Nov 2, 2015
edited by CPhill  Nov 2, 2015

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