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Homework Help: :eek: Kinematics help :eek:

  1. Sep 10, 2005 #1
    wat moves at constant speed in straight line?
  2. jcsd
  3. Sep 10, 2005 #2
    These are some questions I need to answer..
    >What moves at constant speed in straight line?
    >What moves at constant speed in circle?
  4. Sep 10, 2005 #3
    anyone here to help??
  5. Sep 11, 2005 #4
    A lot of things can travel at a constant velocity in a straight line.

    And I think that when something follows the path of a circle it is said to be constantly changing its speed (accelerating). Although I probably understood this wrong when I heard it.
  6. Sep 11, 2005 #5
    confusing speed with velocity....... :surprised :surprised
  7. Sep 11, 2005 #6


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    Science Advisor

    Are you looking for examples or what?

    Something moving at a constant speed in a straight line has a constant velocity (no acceleration, no net force).

    Something moving at a constant speed in a circle, has a constantly changing velocity (centripital acceleration toward the center of the circle).
  8. Sep 11, 2005 #7


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    Homework Helper

    free isolated objects
  9. Sep 11, 2005 #8
    hehe I always do.
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