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!

Homework Help: So I am having some trouble solving these equations!

  1. Mar 27, 2012 #1
    1. The problem statement, all variables and given/known data

    Elementary I know but could I please get some help solving the following four equations. It's simple calculus but I'm getting nowhere with what I have done!!

    Solve for T1, T2, a1, a2

    2. Relevant equations

    m2g-T2 = m2 (a1-a2)
    m3g-T2 = m3 (a1+a2)
    T1-T2 = 0
    T1-μm1g = m1a1

    (note that the the numbers after a and t are not numerical values. Just to show that the T1 has a different value for T2 etc. )

    3. The attempt at a solution

    So I have tried combining equations
    m2g-T2 = m2 (a1-a2)
    m3g-T2 = m3 (a1+a2)

    and ended up with g = a1- a2(m2+m3)/(m2-m3)

    After that I just can't figure out what to do next!
    any suggestions?
  2. jcsd
  3. Mar 27, 2012 #2
    Its ok... just got it!
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook