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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
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?
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.
Newton’s First Law 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!

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Chapter_5_Newtons_First_and_Second_Laws - The Laws of...

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