If an object isnt moving, no external force acts on it, Physics

Q. If an object isn't moving, no external force acts on it. 

No it is always not true, there would be balanced forces which cancel each other out leaving no net force. Example: Sitting on a chair, the chair pushes up on you while gravity pulls you down, but you aren't going anywhere because those forces cancel each oyher and net force is equal to zero. 

Posted Date: 5/14/2013 5:22:20 AM | Location : United States

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