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Homework Help: Solving for work and energy

  1. Feb 1, 2010 #1
    1. The problem statement, all variables and given/known data

    In 1985 in San Antonio, Texas, an entire hotel building was moved several blocks on 36 dollies. The mass of the building was about 1.45 x 10^6 kg. If 1.00 x 10^2 J of work was done to overcome the force of resistance that was just 2.00 percent of the building's weight. How far was the building moved?

    2. Relevant equations

    Net Work = deltaKE or deltaKE = KE(final) - KE(initial) = -1/2mv(initial)^2

    3. The attempt at a solution

    I'm confused on what to look for first and what formula to use.
    Could someone please help me out?
    Thank You.
     
  2. jcsd
  3. Feb 1, 2010 #2
    Friction force= (coeff of friction)(Weight)(gravity)

    Work = Force*distance
     
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