1. Limited time only! Sign up for a free 30min personal tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Quantitative estimation of the famous trick with two identical strings and a block

  1. Jul 29, 2012 #1
    Dear friends,

    here is the problem which I would like to solve. pleas watch this YouTube video from the 43rd minute http://www.youtube.com/watch?v=M_8w-dD4RBE&feature=relmfu

    It is clear why it is happening so, however I would like to have some quantitative estimation for this problem. For instance for given strings with critical tension "T(critical)" and for the block with mass "M" I would like to know in which case upper sting will be broken and in which case lower string will be broken for
    constant velocity pulling (v=const)
    for constant force pulling (F=const, ∂v/∂t=const)
    linear force pulling (∂F/∂t=const, ∂(∂v/∂t)/∂t=const)

    Thanks in advance.
  2. jcsd
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook

Can you offer guidance or do you also need help?
Draft saved Draft deleted