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!

Circular Motion Relatinship

  1. Oct 20, 2008 #1
    Alright so in one formula Fc= mv^2/r and another Fc= 4pi^2r/T^2


    Although the two formlas are the same Mathematicly but isnt Fc porportional to the inverse of the r as it is shown in the first one. So why is r directly porportional to Fc in the second one?
     
  2. jcsd
  3. Oct 20, 2008 #2

    olgranpappy

    User Avatar
    Homework Helper

    because if the angular velocity (2pi/T) is constant then v is directly proportional to r. Also, you are missing an m in your 2nd formula.
     
  4. Oct 20, 2008 #3
    No but isnt it supposed to be inversly proportional?
     
  5. Oct 21, 2008 #4

    olgranpappy

    User Avatar
    Homework Helper

    did you read what i wrote?
     
  6. Oct 21, 2008 #5
    Yes I understand this now thanks for the help :)
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?



Similar Discussions: Circular Motion Relatinship
  1. Circular Motion (Replies: 6)

  2. Circular motion (Replies: 1)

Loading...