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!

Potential Energy

  1. Dec 19, 2013 #1
    ImageUploadedByPhysics Forums1387442898.459376.jpg ImageUploadedByPhysics Forums1387442917.808617.jpg To find the force we will differentiate the function with respect to x (dx)
    My problem is with the solution
    If we differentiate:
    dU/dx = 9x^2 - 7

    From where does the negative come from also the j component?
     
  2. jcsd
  3. Dec 19, 2013 #2
    You should have used the homework template, then you have written the relevant equations. What equation is relevant for finding force from potential energy?
     
  4. Dec 19, 2013 #3
    F = dU/dx
     
  5. Dec 19, 2013 #4
    That is not correct.
     
  6. Dec 19, 2013 #5
    Correct me if I am wrong
     
  7. Dec 19, 2013 #6
    Why are you disregarding the y-component when you differentiate?
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?
Draft saved Draft deleted



Similar Discussions: Potential Energy
  1. Potential energy (Replies: 1)

  2. Potential energy (Replies: 1)

Loading...