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!

I Why is the specific angular momentum equal to this?

  1. Jun 1, 2018 #1
    From a wiki's vis-viva equation page, it is given that the specific angular momentum h is also equal to the following:

    h = wr^2 = ab * n

    How can ab * n be derived to be equal to the angular momentum using elliptical orbit energy/momentum/other equations without having to use calculus or equations involving eccentricity?
    Last edited: Jun 1, 2018
  2. jcsd
  3. Jun 1, 2018 #2
    Oh... Wait. This is the old version of this. I understand how it works now. Could someone tell me how geometrically or algebraically you can derive b2 = ra * rb?
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook

Have something to add?
Draft saved Draft deleted