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Doubling the kinetic energy of an object does what to momentum?

  1. Apr 15, 2007 #1
    Would doubling the kinetic energy of an object have any effect on the momentum?
  2. jcsd
  3. Apr 15, 2007 #2

    Meir Achuz

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    Yes, KE=p^2/2m.
  4. Apr 15, 2007 #3
    Yes,According to this equation showing the relation between momentum and kinetic energy:
    [tex]E_k = \frac {p^2}{2m}[/tex]
    I tried reversing the equation and I think you should a negative effect on the momentum
    Last edited: Apr 15, 2007
  5. Apr 15, 2007 #4


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    What do you mean by negative effect? If the kinetic energy increases the momentum increases (although it won't double).
    Last edited: Apr 15, 2007
  6. Apr 16, 2007 #5
    Im stuck on this.

    How could a nest of insects have a momentum of zero?
    Last edited: Apr 16, 2007
  7. Apr 16, 2007 #6


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    Diogenes, momentum is a vector. All the insects momentum vectors could add up to nothing.
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