How do I find the components of a vector parallel to the x-axis?

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To find the components of a vector parallel to the x-axis, recognize that it will only have an x component and no y component. The x component is equal to the length of the vector itself. Trigonometric functions are not necessary in this case since the vector's direction is aligned with the x-axis. This simplifies the calculation, as the y component is zero. Understanding this concept is crucial for solving related physics problems effectively.
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Hi --

I'm working on a physics problem that involves adding several vectors. I know that to find the components of a vector you must do some trig with the angle the vector makes with the x-axis. However, one of the vectors is parallel to the x-axis (but not actually laying ON the x-axis). I'm not sure where to go from there; how to find its components. I tried a few things, but none of them seem to give me the correct answer.

Can anyone help me out with this?
 
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The vector will simply have an x component and no y component.
 
Hmm, ok. Will the x component just be the length of the vector then?
 
Yes, you're right.
 

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