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How do you solve this system of equations?

  1. Feb 3, 2013 #1
    Solve for a

    T - mg = -ma
    T = Ma

    They get a = mg / (M + m)...how?

    I get up to this point... Ma + ma = mg
     
  2. jcsd
  3. Feb 3, 2013 #2

    trollcast

    User Avatar
    Gold Member

    Factorise out the a term on the left side.

    a(M+m)=mg
    a=mg/(M+m)
     
  4. Feb 3, 2013 #3
    Thank you!
     
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