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Pole in the house

  1. Jul 21, 2015 #1
    I was thinking about this for a while now but I coudn't explain it, si here is it :, We have and athlète holding a horizental 20m pole, he's moving at with a (relative) velocity v such that γ = 2, he kept until reaching a 10m large house and closed the door, the house is at rest, now for the "rest" frame of reference we know that this can happen due to lorentz contraction, so in the athlète frame this happens two, but in his frame the house is only 5m large and the pole is 20m, can someone help and tell me if i missed something ?
  2. jcsd
  3. Jul 21, 2015 #2


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    This is just the classic pole-in-barn paradox. The resolution is in the relativity of simultaneity. It is not necessary that the pole fits in the house in the athlete rest frame.
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