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!

Tell me what have I found?

  1. Dec 16, 2003 #1
    One of the basic rules of lever are:
    1) F1 * D1 = F2 * D2
    F = force; D=distance; 1 and 2 are for states 1 and 2 or objects 1 and 2;
    The 3rd Newton's law is a special case when D1 = -D2.
    1) can be transformed into:
    2) F1 / D2 = F2 / D1 = (F1 + F2) / (D1 + D2)
    2.1) F1 * F2 = sqr(F1 + F2) * D1 * D2 / sqr(D1 + D2)
    If F is caused by mass it's
    3) F1 = L * M1 and F2 = L * M2
    as masses attract.
    If F is caused by charge it's
    4) F1 = K * Q1 and F2 = - K * Q2
    as charges repel.
    - K and L are constants;
    If both
    5) F1 = L * M1 + K * Q1 and F2 = L * M2 - K * Q2

    6) (L * M1 + K * Q1) * (L * M2 - K * Q2) = F1 * F2 = sqr(F1 + F2) * D1 * D2 / sqr(D1 + D2)

    7) sqrt{L * L * (M1 / D1) * (M2 / D2) - K * K * (Q1 / D1) * (Q2 / D2) + L * K * (Q1 * M2 - M1 * Q2) / (D1 * D2)} * (D1 + D2) = (F1 + F2)

    If Q1 = Q2 = 0 then sqrt{L * L * (M1 / D1) * (M2 / D2)} * (D1 + D2)= Gravity force = Total force in the system

    If M1 = M2 = 0 then sqrt{- K * K * (Q1 / D1) * (Q2 / D2)} * (D1 + D2)= Coulombian force = Total force in the system

    So what represents sqrt{L * K * (Q1 * M2 - M1 * Q2) / (D1 * D2)} * (D1 + D2)?
     
  2. jcsd
  3. Dec 16, 2003 #2
    addition

    All the above magnitudes are with respect to the equilibrium point.
     
  4. Dec 19, 2003 #3
    Could it be charge - mass interaction?
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook