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Homework Help: NEWTON's laws of motion

  1. May 28, 2008 #1
    hello can some one help me, post a simplified version of Newton's 3 laws of motion and some examples thank you very much :)
  2. jcsd
  3. May 28, 2008 #2
    Hey Doc.Madani :smile:

    1. A physical body will remain at rest, or continue to move at a constant velocity, unless an outside net force acts upon it.

    Imagine a ball moving through space at a constant velocity, until a force act on that ball it will continue to move with that constant velocity.

    2. The relationship between an object's mass m, its acceleration a, and the applied force F is F = ma.

    I am sure you have used examples using F = ma. Say a ball of mass 2 Kg is moving with an acceleration of 5 ms. The force exerted on the ball is 10 N.

    3. To every action there is an equal and opposite reaction.

    If you exert a force on a wall of 10 N and the wall doesn't move, it is exerting a force of 10 N back.

    Somebody might want to touch up on these, if there are any small problems. Those are not the actual laws, but watered down versions.

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