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Ch. 7 Momentum
by emily esser
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Ch. 7 Momentum

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Linear Momentum

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vector Quanity having same direction as the velocity

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The vector of p = mass times the vector of velocity

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The momentum and changes of two objects are always equal and opposite

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Momentum

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Vector quanity

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For momentum to be Conserved these things must be constant

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Mass and velocity involved

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Conservation

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Collisions

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Completely Inelastic

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Inelastic

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Elastic

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System of Particles

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Center of Mass

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Problem solving: Collisions

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Draw before and after diagrams

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Collect and organize data on masses and velocities

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Set the sum of momenta of the two before the collision = to the sum of the momenta after the collision

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Write one equation for each direction

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If perfectly inelastic set final velocities equal

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If perfectly elastic set final kinetic energy equal to initial kinetic energy

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Solve for unknown quantities

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Words of the Day

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Transpicuous

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Trust

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Woolgathering

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Applicability

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