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B Velocity of objects

  1. Sep 25, 2016 #1
    Why velocity of ball(object) increases when it rools down a downward sloping plane and it decreases when it rolles on a upward sloping plane
     
    Last edited by a moderator: Sep 25, 2016
  2. jcsd
  3. Sep 25, 2016 #2
    In the former case the component of gravity along the plane is in the direction of the velocity; in the latter case it is opposing it.
     
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