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Homework Help: Findin buckets' tension when there are two strings n two buckets

  1. Oct 14, 2008 #1
    1. problem
    one 3.1 kg paint bucket is hangin by a massless cord from another 3.1 kg paint bucket, also hanging by a massless cord. if the buckets are at rest, what is the tension in each cord? If the two buckets are pulled upwards with an acceleration of 1.9 m/s^2 by the upper cord, calculate the tention in each cord.

    2. Relevant equations
    newtons second equation of motion

    3. The attempt at a solution
    draw a free body diagram , tension and gravity acts on both buckets but the upper bucket has two tensions from the upper string and the lower string,
    how do u get rid of one variable?
  2. jcsd
  3. Oct 14, 2008 #2
    Again, I suggest drawing a free body diagram for EACH object. The free body diagrams are linked by tension. In this case, the net force on each object is not zero... since there is acceleration, so you have to include that when you use the free body diagram to solve for values of force.
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