Vector F = 17 and is in quadrant 3 and thetaF= 30

What is the component of i along F?
What is the component of F along i?

4 answers

recall that the projection of a onto b is a•b/|b|
Not quite sure what "thetaF" is supposed to mean.
a•b = |a| |b| cosθ
but what is i? because i isn't given in the problem the vectors that are given is A,B,C,F and for this problem it focuses on vector F but what is i
thetaF is 30 degrees
i is the unit vector in the +x direction -- you know: i,j,k are the three basis vectors in 3D
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