Question
Given the vectors in unit vector notation: A=(-3.0m)i+(4.0m)j B=(4.0m)i+(-7.0m)j Calculate the magnitude and the directional angle...
Given the vectors in unit vector notation:
A=(-3.0m)i+(4.0m)j
B=(4.0m)i+(-7.0m)j
Calculate the magnitude and the directional angle of the resultant
of r=a+b with respect to the + x axis.
Homework Answers
Answer #1
Given,
The resultant vector is given by,
The magnitude of the resultant vector is given by,
So the magnitude of the resultant vector is 3.16m.
The direction of the resultant vector is given by,
So the direction of resultant vector is 
clockwise or 
anti-clockwise from positive x-axis.
(NB: Usually the direction is taken anti-clockwise from positive x-axis)
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