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12.1 - Newton's Third Law |
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Written by Mr. Emrich
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Tuesday, 09 December 2008 22:31 |
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Quite Simply, action = reaction.
In more sophisticated terms:
For every action force, there is a reaction force which is equal in magnitude and opposite in direction.
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Last Updated on Wednesday, 27 January 2010 11:36 |
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11.1 - Newton's Second Law |
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Written by Mr. Emrich
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Tuesday, 09 December 2008 22:31 |
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From Newton's first law, and by analysing the inertia of an object, what must we do to accelerate an object?
Apply a force!
What if the object is really, really massive?
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Last Updated on Wednesday, 27 January 2010 11:35 |
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9.2 - System and Free-Body Diagrams |
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Written by Mr. Emrich
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Wednesday, 10 December 2008 10:57 |
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Every system has some forces acting on it. But when there are multiple forces acting on an object, it is simpler to figure out the net force (or the total force) on the object rather than trying to deal with each force individually.
And really, it is quite simple. We just have to draw the force (from where it is originating), the magnitude of the force, and its direction.
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Last Updated on Wednesday, 27 January 2010 11:34 |
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10.1 - Newton's First Law |
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Written by Mr. Emrich
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Tuesday, 09 December 2008 22:30 |
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Newton's First Law of Motion is one that we are all somewhat familiar with. An object in motion will stay in motion and an object at rest will stay at rest. Unless acted upon by an unbalanced external force!
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Last Updated on Wednesday, 27 January 2010 11:35 |
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5.1 - Uniform Acceleration |
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Written by Mr. Emrich
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Tuesday, 25 November 2008 10:06 |
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Is uniform acceleration, uniform motion?
NO!
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Last Updated on Wednesday, 27 January 2010 11:27 |
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