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Homework Help: Netforce Graph Help

  1. Mar 24, 2013 #1
    1. The problem statement, all variables and given/known data


    3. The attempt at a solution


    Netforce is zero right?
    Constant speed is constant velocity.
    I'm not sure how to draw this.
  2. jcsd
  3. Mar 24, 2013 #2
    Not always - remember that velocity is a vector.
  4. Mar 24, 2013 #3
    Net force in this case is not zero.

    Constant speed doesn't imply a constant velocity because velocity is a vector and in the track, its direction changes. This change in direction implies that the body is being accelerated. In this case it is the centripetal acceleration. It can be calculated knowing the velocity and the radius of the track at the required point.
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