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Homework Help: Trying to verify these work relations

  1. Mar 26, 2012 #1
    I need to verify these three work relations and don't know where to even start.

    Wtotal= ΔK, Wc= -ΔU and Wnc = ΔE

    The details for the whole problem were A block of mass m1 = 2.40 kg is connected to a second block of mass m2 = 1.80 kg, as shown in the figure. The two masses start from rest and are moving with a speed of 2.05 m/s just before m2 hits the floor.

    I already figured out the answers to the first three parts of the questions and the answers were.


    Honestly I'm not sure what they are even looking for as means for an answer.
    Last edited: Mar 26, 2012
  2. jcsd
  3. Mar 26, 2012 #2
    It would help if you could give us a diagram.
  4. Mar 26, 2012 #3
    I apologize, I knew I forgot something.

    Attached Files:

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