- #1
Aladin
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How the direction of a vector is found ?
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.
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.
---------------------------------------------------------------------
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.
................
1) Please tell me what is the correct mathod of finding the direction of a vector.