Posted by BMAN on Wednesday, September 23, 2009 at 7:43pm.
A vector "A" i s20 units long at an angle of 15 degrees above the horizontal(xaxis) and a vector "B" is 40 units long at an angle of 60 degrees above the horizontal(xaxis). What is the magnitude and direction of the resultant vector?

Physics  MathMate, Wednesday, September 23, 2009 at 9:51pm
Resolve each vector into its x and ycomponents. Sum each component, which becomes the components of the resultant vecotr. The magnitude can be obtained using
A=sqrt(Ax²+Ay²)
and the angle with the xaxis can be found using arctan(Ay/Ax). Determine the quadrant by examination of the sign of each component.
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