- #1

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I am not sure I did this problem correctly and would like some feedback. Below is how I reasoned through the problem. Thanks for your help.

Kevin

## Homework Statement

Find x- and y-components of the vector (3.0 , - x-direction).

## Homework Equations

cosθ= A/H

sinθ= O/H

H= -3.0

## The Attempt at a Solution

I made two vectors connecting to form a 90 degree angle pointing at the hypotenuse. The other two angles are now 45 degrees and I plugged them in to the above equations as follows:

cos(45)=A/-3 = -2.12

sin (45)=O/-3= -2.12

(-2.12)^2 + (-2.12)^2 = -3^2

8.99 or 9 = 9

So X and Y are both -2.12