Newton's laws

Isaac Newton (British, 1642-1727) proposed three laws that helped explain how he saw the world.

  • NI: A body at rest will stay at rest unless there is a force on it. A body in motion will stay in motion unless there is a force on it.
  • NII: The acceleration of a body is directly proportional to the force acting on it.
  • NIII: For every action there is an equal and opposite reaction.

    Great. So what does this mean?

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