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I Tension In a string

  1. Apr 30, 2017 #1
    A box suspended by a rope is pulled to one side by a horizontal force. The tension in the rope increases! Why is it so?
     
  2. jcsd
  3. Apr 30, 2017 #2
    draw a diagram; write down force balance equation; expand it in coordinate frame if needed
     
  4. Apr 30, 2017 #3
    Have you solved the force balance equations, as zwierz suggests, and found that the tension increases, or were you told that it increases and you're trying to understand why?
     
  5. Apr 30, 2017 #4
    Because for every action if force there is an equal and opposite reaction. Thus this equal reaction must get exerted upon the rope, as it is supporting the object on which the force was exerted. Ergo....more tension on the rope.
     
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