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Homework Help: Speed and angle relativity theory transformations

  1. May 13, 2010 #1
    1. The problem statement, all variables and given/known data

    http://img338.imageshack.us/img338/9682/spaceships.gif [Broken]

    V1, V2, U, alpha are given.

    The red spaceship is moving left in Velocity V1 (in the lab system) and a ball is thrown in angle alpha and speed U(in the red spaceship system).

    What is Alpha in the Blue system?

    2. Relevant equations

    lorentz transformation of speed and location


    3. The attempt at a solution

    I am quite clueless as to which speeds I should transform to what, and would appreciate a lending hand. thanks!
    1. The problem statement, all variables and given/known data



    2. Relevant equations



    3. The attempt at a solution
     
    Last edited by a moderator: May 4, 2017
  2. jcsd
  3. May 13, 2010 #2

    Cyosis

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    Homework Helper

    Resolve the x and y components of the U vector in both frames. Then transform those separately.
     
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