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Homework Help: Am I doing this right?

  1. Oct 30, 2004 #1
    Hello! I was wondering if anyone could tell me if I was solving this Physics problem correctly:

    A jet aircraft is traveling at 310 m/s at 35° south of east. What is the southern component of its velocity?

    cos35°= x/310
    310cos35= x
    254 m/s = x

    The real answer is supposed to be 178 m/s, but I keep getting 254 even if I solve it graphically. So...what, if anything, am I doing wrong?
    Last edited: Oct 30, 2004
  2. jcsd
  3. Oct 30, 2004 #2
    Check your angles again. The plane is travelling at 35° south of east. You did not draw the vector diagram correctly.
  4. Oct 30, 2004 #3
    You are getting the eastern component. They want the southern component, which is the component of the vector pointing downwards.
  5. Oct 30, 2004 #4
    Oh, looks like i should have checked your diagram first. Looks like Sirus is right, the diagram is drawn incorrectly.
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