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Motion
by emily esser
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Motion

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Acceleration

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the rate of change of the velocity

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indicates any change in the velocity vector

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To find it:

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Reading graphs

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Position

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States where an object is located

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x-, y-, and z-coordinates

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Point of reference in relation to origin

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Displacement

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Definition:The change of the position vector

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How to find it: The final position vector minus the initial position vector

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Remember: does not necessarily equal the total distance traveled

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Velocity

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depends on displacement and time interval

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Average velocity

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Instantaneous velocity

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Reading Graphs

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Newton's second law

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rate of change of the velocity is proportional to the net force and inversely proportional to the mass of th object

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net force is constant the acceleration is also constant

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Applying to problems

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Constant net force

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equations

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Visualization

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Motion diagrams

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Free Fall

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No forces act on an object other than the gravitation force that makes the object fall

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Air resistance

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massive objects are harder to accelerate

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More mass=more inertia

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the acceleration of an object in free fall is the vector of "g" regardless of the object's mass

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9.80 meters per second squared

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Motion of projectiles

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an object moves in the xy-[plane with constant acceleration then both a of x and a of y are constant

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Projectiles

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Angle of elevation

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Trajectory

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Apparent Weight

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the feeling of "weightless"

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elevator example

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Air resistance

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Drag force

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Terminal velocity

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Terminal speed

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Vectors

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Positions and displacements

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Problem solving

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Words of the Day

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Forestall

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Modus operandi

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Ne Plus ultra

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Ithaca

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Panacea

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Explore

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Red Herring

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Mash-Up

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Helpful terms

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Interval

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Slope

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Mass

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Weight

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Relationship: velocity and Acceleration

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Velocity is the change in position

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Acceleration is the change of velocity

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