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Thread: Role Forces

  1. #1 Role Forces 
    bon
    bon is offline
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    hi, can somebody help me

    My task:
    Determine the force with which you have to pull the two suspend sorts at least on paper straight down, so that the paper unrolls. Allows you to choose which suspension is therefore easier.

    My approach:
    sin(∂)=Fn/T
    cos(∂)=Fg/T
    Fn = Fg/cos(∂) * sin(∂) = Fg * tan(∂)

    Fr= μ * Fn = μ * Fg * tan(∂)
    Fr=Fz
    Fz=μ * Fg * tan(∂)

    I think the difference between the two systems is the force exerted by the pulling force on the wall. Why is one easier than the other.

    I have no idea, how I can calculate the force which is produced by the pulling force.

    thanks already in advance


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  3. #2  
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    Quote Originally Posted by bon View Post
    two suspend sorts at least on paper straight down, so that the paper unrolls. Allows you to choose which suspension is therefore easier.
    your post is incomprehensible.


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