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Acceleration of a block with 2 tension forces

  1. Apr 29, 2007 #1

    The way I started this problem was drawing 3 force diagrams. For the 1.0kg mass, there were two forces, weight and tension. The second mass, m (2.6kg), had 5 forces; normal, weight, 2 tensions, and kinetic friction in the negative x direction. The last mass, also had 2 forces, tension and weight. I think it would be relatively easy to find acceleration if it wasn't for the tension of the first mass. I'm not sure how to go about solving for that. Any ideas?
  2. jcsd
  3. Apr 29, 2007 #2


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    Sure. You have exactly three unknowns. The two tensions and the acceleration. You also have three bodies for which you can compute force diagrams and write F=ma. That should give you three equations in three unknowns.
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