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Homework Help: What is 0/dt.

  1. Sep 22, 2010 #1
    1. The problem statement, all variables and given/known data
    I am working on a problem and am wondering what 0/dt is.

    3. The attempt at a solution
    Is it just 0, or does it turn into something with t?
  2. jcsd
  3. Sep 22, 2010 #2
    u mean d0/dt ?
    the derivative of 0 is 0 no matter what.
  4. Sep 22, 2010 #3
    Hmm, maybe it's a trick question, but logically, how does zero change with time? If your function is zero at all t, then I would assume yes, the answer is zero.

    If this is for a lower level calc class, that is probably the answer. If it's higher level, then I am most likely wrong. :)
  5. Sep 22, 2010 #4


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    Gold Member

    0 is a constant, it does not change. Ever.

    So just wait for a math junkie to come in here and say "it depends on what 0 is".
  6. Sep 23, 2010 #5


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    Science Advisor

    If dt is a number, then 0/dt= 0. If dt is a differentianl, then 0/dt is simply meaningless. I wonder if you haven't got a fraction in which the numerator has a limit of 0? If the denominator is going to "dt", a differential, then, essentially, you have a "0/0" situation in which the limit depends on exactly how that limit is taken.

    Please tell us what the problem was from which you got "0/dt".
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