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Couple of Physics Question dealing with momentum, force, etc

  1. Sep 16, 2008 #1
    Suppose I am pulling on a cart at a constant velocity, what is my net force. Is it zero?

    If I throw a baseball in the air, neglecting air resistance, what does the ball experience when it comes out your hand and before it hits the ground? does it experience it's weight and also a decreasing upward force.
  2. jcsd
  3. Sep 16, 2008 #2
    Net force is zero if there is no friction.
    Well, ball feels the same force (assuming both events are on equal height, like I think it was meant)
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