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Motion - zero velocity but still having acceleration

  1. May 9, 2012 #1
    Motion -- zero velocity but still having acceleration

    What would be a example of a body having zero velocity but still having acceleration, except the example of a body projected vertically upwards and at the highest point it has no velocity but an acceleration equals 'g'?
     
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  3. May 9, 2012 #2

    Drakkith

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    Re: Motion

    Reversing the direction something is moving in?
     
  4. May 9, 2012 #3

    A.T.

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    Re: Motion -- zero velocity but still having acceleration

    There is always a frame of reference where a body has zero velocity.
     
  5. May 9, 2012 #4

    sophiecentaur

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    Re: Motion -- zero velocity but still having acceleration

    An obvious one comes to mind: consider a pendulum at each end of its motion.
     
  6. May 9, 2012 #5

    HallsofIvy

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    Re: Motion -- zero velocity but still having acceleration

    Or throw a ball upward. At its highest point the ball's velocity is 0 but its acceleration is still -9.8 m/s^2.
     
  7. May 9, 2012 #6

    DrGreg

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    Re: Motion -- zero velocity but still having acceleration

    ...or someone bungee jumping when they reach the lowest point.
     
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