1. Not finding help here? Sign up for a free 30min 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!

Find components of net force.

  1. Oct 7, 2012 #1
    1. The problem statement, all variables and given/known data
    2 kg mass swings on the end of a rope as shown in the figure below. At the highest point in the trajectory the string makes a 56 degree angle with respect to the horizontal and the tension on the string is 16.25 N.

    = (No Response) N


    2. Relevant equations
    So I know I need to the direction of Ft and Fg.
    Ft^hat=<cos(56),sin(56),0>
    Fgrav^hat=<cos(56),sin(56),0>
    Ft=16.25
    Fgrav=-19.6
    3. The attempt at a solution
    So I'm not quite sure what to do now. The way I tried doing it was adding the two vectors times their magnitudes and finding the magnitude of that vector but I get the wrong answer. I feel that the problem is in directions of my forces but I don't understand why.
     

    Attached Files:

  2. jcsd
  3. Oct 8, 2012 #2

    ehild

    User Avatar
    Homework Helper
    Gold Member

    What is the question?


    ehild
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook




Similar Discussions: Find components of net force.
Loading...