Vector addition?

Vector A has a magnitude of 13 units at a direction of 250 degrees and vector B has a magnitude of 27 units at 330 degrees, both measured with respect to the positive x axis


first what is the sum of A and B


second what is the vector C=A-B


how is this done

Vector addition?
huh??
Reply:You can answer this graphically:


1) Draw the two vectors on some graph paper (protractor %26amp; ruler to get the proportions right).





2) Bisect the (interior, smallest) angle, using protractor or compass and straight edge.





3) From the (pointed) end of vector A, draw a line parallel to vector B, call it B'.





4)The sum vector is from the origin to the point where B' crosses the angle bisector (step 2).





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There is a numerical solution involving trig. functions, which I do not remember. Search for an answer on the web, as someone teaches this at some university and may have left their notes on the web for their students.