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Homework Help: Maximum Force - Linear momentum

  1. Feb 17, 2010 #1
    1. The problem statement, all variables and given/known data

    Assuming that the force F acting on a 2 kg box, as it passes
    horizontally through a channel (see Fig. a), varies with time
    in the manner shown in Fig. b, determine the maximum
    force F0, applied to the box. The velocity of the box reaches
    5 m/s when t = 8 s. Assume that the box is at rest at t = 0.
    Neglect friction between the wall of the channel and the

    http://img715.imageshack.us/img715/1446/37196096.jpg [Broken]

    2. Relevant equations

    mv1 + sum integral F = mv2 - sorry for writting integral with words

    3. The attempt at a solution

    So this is how i proceed.
    At the beginning v1=0. No velocity

    in x direction
    m*0 + integral from 0 to 8 Fx = 2*5

    Now we integrate and find the force. But i am not sure if this is the right way to do it.
    Can anybody help me a little bit
    Last edited by a moderator: May 4, 2017
  2. jcsd
  3. Feb 18, 2010 #2
    Plese people. I need a little help.
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