A force f is expressed with respect to the basis e1 and e2 by equation 2(3e1+4e2) N. If the directions of e1 makes an angle of 30 degree with f, find the vector e2.
Solution
Given force magnitude
Angle between e1 and f is =30°
Using basis vector concept
Magnitude of e1 is unit.
So vector e2 can be written as
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