Chapter_5_Newtons_First_and_Second_Laws

Chapter_5_Newtons_First_and_Second_Laws - The Laws of...

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The Laws of Motion!
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Force (Not “The Force”, But Almost As Cool)! What are forces? Forces are how objects interact with one another. Forces can cause acceleration. What are forces mathematically? Scalars or Vectors
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Adding Forces! F g F wind Resistance (Opposes Velocity) F net = ? + =
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The Fundamental Forces Gravitational Electromagnetic Strong Weak So which Force(s) is(are) responsible for you not falling through your chair?
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Inertial Frames! An reference frame is the point of view of the physicist! An inertial reference frame is any reference frame that is not accelerating!
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Which Frame is inertial? A passenger on a train moving at 5m/s watching her husband walk in the same direction at 1m/s as the train pulls into the station. An astronaut watching the Hubble Telescope pass by as the shuttle’s engine fires slowing the ship to reenter the atmosphere.
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In the absence of a force, a body in motion stays in motion at a constant velocity and a body at rest stays at rest! i.e. No force, no acceleration!
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This note was uploaded on 10/28/2009 for the course PHYS SP211 taught by Professor Idk during the Fall '08 term at Naval Academy.

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Chapter_5_Newtons_First_and_Second_Laws - The Laws of...

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