Finding Vector Components Using Angle and Magnitude | Vector A along Vector B

[AR1399]

Homework Statement

To find the component of one vector A along another vector B.

Homework Equations

Components are A(cos theta) and A(sin theta)

The Attempt at a Solution

What I tried was to consider the vector B as a "pseudo x axis" and draw a subsequent "pseudo y axis". Then, using angle between them, I found A(cos theta).
I'm not sure this is the correct method, so could someone point out how correctly to find it?

 

[ShayanJ]

To find the component of a vector $\vec V$ in the direction of real x axis, you compute $\vec V \cdot \hat x$. What will it become for your "pseudo x axis"?

 

[AR1399]

Ok, so if it is V vector . x cap, then for for V vector along B vector it should be
V vector . B cap, or rather, V vector . B vector / Magnitude(B vector), right?

NOW I got it! Thnx a ton man!