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!

Formula of curvature

  1. Jul 25, 2016 #1
    1. The problem statement, all variables and given/known data

    can someone explain how to turn the formula of curvature T'(t) / r'(t) into | r'(t) x r"(t) | / | (r't)^3 | ?

    2. Relevant equations

    3. The attempt at a solution
    my working is in 317.jpgT'(t) / r'(t) <blockquote class="imgur-embed-pub" lang="en" data-id="a/q3t1U"><a href="//imgur.com/q3t1U"></a></blockquote><script async src="//s.imgur.com/min/embed.js" charset="utf-8"></script>

    [PLAIN]http://imgur.com/a/q3t1U[/B] [Broken]

    Attached Files:

    • 316.jpg
      File size:
      63.8 KB
    • 317.jpg
      File size:
      31.2 KB
    Last edited by a moderator: May 8, 2017
  2. jcsd
  3. Jul 25, 2016 #2


    User Avatar
    Science Advisor
    Homework Helper
    2017 Award

  4. Jul 25, 2016 #3


    User Avatar

    Staff: Mentor

    @chetzread -- Please post this in your other thread. Thank you.
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Similar Discussions: Formula of curvature
  1. Is there a formula? (Replies: 2)

  2. Compute the curvature (Replies: 15)

  3. Find the curvature? (Replies: 5)

  4. Find the curvature (Replies: 1)