Physics Concepts

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  1. Forces: 6
    For Free-body-diagrams draw only the forces acting on the object in question.
  2. Forces: 7 Newton's First Law:
    For onjects at rest or moving at constant velocity the net force is zero.
  3. Forces: 8 Newton's Second Law:
    A net unbalanced force produces acceleration.
  4. Forces: 9
    The normal force and the gravitational force are not an action-reaction pair.
  5. Forces: 10
    Static friction exists between two surfaces when motion is impending; kinetic friction occurs when two surfaces are in relative motion. In either case, the friction forces are proportional to the normal force.
  6. Forces: 11
    For inclined planes, the minimum coefficient of static friction u=tan 0
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Physics Concepts
Some Physics Concepts
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