Debdatta B. answered • 03/09/17
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It depends on what are the directions on A and B. Let us assume they touch at the tail end. Then you have to use the parallelogram method to find the direction of AB. it can be A-B as well AS
B-A . It depends on the direction of the vector AB. I have a feeling there was a diagram that came with this problem that is missing here.
Debdatta B.
Yes that is quite evident that it is the line joining A&B. But what is the direction on this vector AB ? Whenever you are talking about vectors you have to give directions along with them otherwise they are not vectors, they are scalars.
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03/09/17
Debdatta B.
Also if you look at the choices for AB they are A-B or B-A. So AB is indeed very much related to the vector A and the vector B.
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03/09/17
Mark M.
03/09/17