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Calculate the acceleration and the tension in the rope

  1. Sep 29, 2007 #1
    1. The problem statement, all variables and given/known data
    Calculate the acceleration and the tension in the rope. For your variables use "m1", "m2", "theta1", "theta2" and "g". Assume all surfaces are frictionless, and the pulley and rope are massless and frictionless.



    http://www.webassign.net/userimages/48539?db=v4net






    2. Relevant equations

    Fne=ma, wight=ma

    3. The attempt at a solution

    ((m2sin(theta2)-m1sin(theta1)/((m1+m2))(g)
     
  2. jcsd
  3. Sep 29, 2007 #2

    lightgrav

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    Homework Helper

    so, did you have a question about this situation?
     
  4. Sep 29, 2007 #3
    yes, im not sure how to find the acceleration and tension.
     
  5. Sep 29, 2007 #4

    lightgrav

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    Homework Helper

    once you know the acceleration,
    the Tension can be obtained by isolating
    *either one* of the blocks
    ... "cutting the rope" allows T to be measured.
     
  6. Sep 30, 2007 #5
    Try to draw the FBD of the two blocks.

    Now as the surfaces are friction less

    T - m1gsin(theta1) = m1a

    and m2gsin(theta2) - T = m2a
     
  7. Jan 27, 2010 #6
    are you aware that there is an arrow in fed ex? and y dont you try solving it in terms of force parallel? its much easier
     
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