Posted by BMAN on .
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,
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.