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: Reverse vector addition?

  1. Feb 27, 2009 #1
    The magnitude of vector A is 35.1 units and points in the direction 301° counterclockwise from the positive x-axis. Calculate the x-component of this vector.

    So...35.1=sqrt(vx^2 + vy^2)

    and 301°= vy/vx

    How do I do this?
  2. jcsd
  3. Feb 27, 2009 #2


    User Avatar
    Homework Helper

    You just need trig. It's a right angled triangle. You know an angle and the hypotenuse, so what can you do to find the x component?
  4. Feb 27, 2009 #3
    Wow. It was that easy. Thanks.
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook