How the direction of a vector is found ?(adsbygoogle = window.adsbygoogle || []).push({});

In figure "a" we want to find the direction of the vector AB.In order to find the direction of vector AB,why we considered the angle between AB and y-axis.Why we did not considered this angle between AB and x-axis.

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On the other hand the figure ''b".

Also in second example we want to find the direction of the resultant vector of A and B.While A=3cm and B=4cm.

Its resultant will be A+B=5cm.

Now we find the direction of A+B.

I see in my book that the angle is found between resultant vector (A+B) and A i.e (x-axis) the answer is 53 degree.that is correct.

but answer of the first example is also correct.

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1) Please tell me what is the correct mathod of finding the direction of a vector.

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# Homework Help: What is the correct method of finding the direction of a Vector

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