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Question about force

  1. Feb 24, 2016 #1
    If a constant force acts on an object, does the acceleration changes or velocity changes?
  2. jcsd
  3. Feb 24, 2016 #2


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    Science Advisor

    What does Newton's 2nd Law tell you?
  4. Feb 24, 2016 #3
    If you put a constant force on a object siting on the ground, it may not move because your force is not big enough.
  5. Feb 24, 2016 #4
    What if the net force is positive. What then?
  6. Feb 24, 2016 #5
    ## \vec a = \frac{\vec F}{m}##
    according to this formula (Newton´s II law) if sum of all forces (F) is constant and mass m is constant ,then also acceleration a is also constant.

    since ##v=\int (dt \cdot a(t))=\int (dt \cdot F(t))/m## if F≠0 then velocity changes.
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