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Homework Help: How much time does it take to change your displacement by 25.0m east?

  1. Sep 19, 2012 #1
    As you walk to class with a constant speed of 1.65 m/s , you are moving in a direction that is 16.2° north of east.

    How much time does it take to change your displacement by 25.0 m east?

    I know that v0 = 1.65 m/s. Would I use the equation: x = (v0 cosθ)t?


    Any help or advice would be much appreciated.
     
    Last edited: Sep 19, 2012
  2. jcsd
  3. Sep 19, 2012 #2

    lewando

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    Maybe you meant to say vx = (v0 cosθ)t
     
  4. Sep 19, 2012 #3
    Yes. Would that be correct equation to use?
     
  5. Sep 19, 2012 #4

    lewando

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    Yes, to get the velocity in the x (eastward) direction. Using this result, you can easily determine t.
     
  6. Sep 19, 2012 #5
    Thank you.
     
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