How does a weight connected to a string over a pulley pulling a cart apply force onto the cart?

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I wonder if the following diagram is helpful:

enter image description here

There is a force from the pulley on the string - that is what allows the tension to "turn the corner" so the force from the weight (which is downwards) is turned into a horizontal force (tension that can pull the cart).

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Legoboy0215
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Legoboy0215

Updated on December 17, 2022

Comments

  • Legoboy0215
    Legoboy0215 11 months

    How does the mass hanging down on the bottom (Assuming frictionless environment) apply a pull force to the car? How does the weight of the object transfer to the string (tension force and maybe the pulley does something?) which pulls the car?

    Weight_Pulley_Cart

    • JMac
      JMac about 6 years
      Why wouldn't it?
    • JMLCarter
      JMLCarter about 6 years
      The pulley rotates...? You need to clarify why you have an issue with this.
    • Legoboy0215
      Legoboy0215 about 6 years
      Basically, I am wondering how the vertical force gets transformed into a horizontal one.
  • Legoboy0215
    Legoboy0215 about 6 years
    Is the force applied by the pulley distributed evenly across the two ends of the string?
  • Floris
    Floris about 6 years
    I'm not sure I understand your question. The force is not "across the ends of the string", it is "on the string".
  • Legoboy0215
    Legoboy0215 about 6 years
    Oh, I didn't know that. Thanks! Last question - Is the weight of the item simply just the same as the force of the pull on the car?
  • Floris
    Floris about 6 years
    If there is no friction in the pulley, then yes.