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Moving an object with constant force(N) in x direction

  1. Oct 3, 2009 #1
    Is it possible to continuously push on an object with a force of 1N in the x direction and keep moving it constant velocity? What is an example?


    I know that if the object was 1kg and you pushed it with a force of 1N it would accelerate at 1 m/s^2. Can you have constant velocity and constant acceleration?
     
  2. jcsd
  3. Oct 4, 2009 #2
    No.

    You can do one or the other, not both. See, acceleration is defined as the instantaneous rate of change of velocity with respect to time. However, if velocity is constant, its value at any point in time will be the same, so its rate of change will be zero, hence 0 acceleration. The converse is true as well. If you have some acceleration, then you must have a change in velocity.
     
  4. Oct 4, 2009 #3

    tiny-tim

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    It depends what the other forces are.

    Can you think of an example? :smile:
     
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