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Forces on high velocity object

  1. Nov 28, 2014 #1
    Imagine a sequence where an object with mass M1 is traveling V=V1=10m/s straight through empty space relative to reference frame P. Since V1 << C, we can ignore relativistic effects. This implies that any force that may be applied too the object would be given by the Newtonian formula F=M1A. This is true in all possible directions the force F may be applied.

    Now, i want to concentrate on 3 different directions the force may be applied when V=V2≈C. I wish too know what the formulas for the forces are when the force is applied;

    (i) perpendicular too V2
    (ii) in the same direction as V2
    (iii) in the opposite direction as V2

    Important: The force is in all three cases applied from reference frame P.
     
    Last edited: Nov 28, 2014
  2. jcsd
  3. Nov 28, 2014 #2

    Nugatory

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    Staff: Mentor

  4. Nov 28, 2014 #3
    After what i can understand from your link; the answer to my question would then be...

    (i) perpendicular too V2
    F=MγA

    (ii) in the same direction as V2
    F=Mγ3A

    (iii) in the opposite direction as V2
    F=-Mγ3A

    (where γ is the Lorentz factor)
     
    Last edited: Nov 28, 2014
  5. Nov 28, 2014 #4

    Nugatory

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    Staff: Mentor

    That's it!
     
  6. Nov 28, 2014 #5
    Thank you!
     
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