1. Limited time only! Sign up for a free 30min personal tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Homework Help: Find the direction of vector R counterclockwise of the + x axis

  1. Jan 15, 2012 #1
    1. The problem statement, all variables and given/known data

    Find the direction of vector R counterclockwise to the + x axis

    2. Relevant equations

    3. The attempt at a solution

    This kind of threw me off balance. I know to get the direction of the vector R for the problem is arctan (5.07/10.87) which gives me 25.

    However the answer is 181 degrees.

    What am I doing wrong?

    Thank you
  2. jcsd
  3. Jan 15, 2012 #2


    Staff: Mentor

    So are you saying that R points in the negative x axis direction?
    Or are there more facts to this problem?
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook