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Another kinematics easy problem

  1. Jul 11, 2004 #1
    Dear PF,
    Hera is a problem I am trying to solve.

    The evil Dr.X secretly leaves Space port L4 in a warship capable of traveling at an average speed of (v_av)_x.
    Two hours later her escape is noticed and our hero blasts off after her at a speed that will effect rendezvous in 6.4 hours. Write an expression for his speed, (v_av)_H, in terms of hers, (v_av)x.

    I assumed the place they meet is where L (the distance traveled) is equal for both then :
    (1) (v_av)_x = L / (8.4)
    (2) (v_av)_H = L / (6.4)
    so (v_av)_H = 1.3(v_av)x
    If I'm making a mistake please let me know.
    I don't know why the writer of this book hasn't included
    an answer section :mad:

    Thanks
     
  2. jcsd
  3. Jul 11, 2004 #2
    Looks good.
     
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