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Control system problem(please help)

  1. Dec 30, 2008 #1
    1. The problem statement, all variables and given/known data
    [​IMG]
    question:
    find maximum velocity error constant(Kv)
    feedback is :1 positive

    the book says the right answer is:0.75

    but every time i calculate E(s) it goes to the wrong answer!
    please help!
     
  2. jcsd
  3. Dec 30, 2008 #2

    CEL

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    Kv is K/2. The book's answer is correct if K = 1.5.
     
  4. Dec 30, 2008 #3
    thanks for the reply it helped a lot.
     
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