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Two Masses, a Pully, and an Inclinde Plane

  1. Oct 17, 2007 #1
    1. The problem statement, all variables and given/known data

    Block 1, of mass m1 = 0.700kg , is connected over an ideal (massless and frictionless) pulley to block 2, of mass m2. Assume that the blocks accelerate downword with an acceleration of magnitude = 0.250m/s^2 and that the coefficient of kinetic friction between block 2 and the plane is u = 0.200.

    Tried to attach a good picture of the angle at which the block is 30

    2. Relevant equations


    With T=6.69
    F=un Which n=8.5 so then it would be 1.7

    3. The attempt at a solution

    well to set it up im not sure if im right but i tried to sub all know values into the above eq


    i keep geting wrong answer + i dont konw how to solve when M2 is on both sides? What do i do. I know the answer has to be smaller than .700kg because if it were larger they would not move.

    Attached Files:

  2. jcsd
  3. Oct 18, 2007 #2
    any idea?
  4. Oct 18, 2007 #3

    Doc Al

    User Avatar

    Staff: Mentor

    Good. That's Newton's 2nd law applied to mass 2. Do the same for mass 1.

    How do you know the tension?
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