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    English: Geometrical description of the specific angular momentum h, whose magnitude h equals the speed v times r⊥, the component of the position vector r perpendicular to the velocity vector v. h also equals the radial distance r times the azimuthal component vφ of the velocity. Both of these formulae are equal to rv cos β.
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    Author WillowW
    Other versions This image is similar to Areal_velocity.svg and Areal_velocity2.svg, both of which were made entirely by me.

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    9 August 2010

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    Date/TimeThumbnailDimensionsUserComment
    current03:49, 10 August 2010Thumbnail for version as of 03:49, 10 August 2010710 × 580 (10 KB)WillowWChange angle θ to β to sidestep potential confusion of students, who might expect that θ is the angle between '''r''' and '''v''', rather than its complement.
    01:40, 10 August 2010Thumbnail for version as of 01:40, 10 August 2010710 × 580 (10 KB)WillowW{{Information |Description={{en|1=Geometrical description of the specific angular momentum '''h''', whose magnitude ''h'' equals the speed ''v'' times ''r''<sub>⊥</sub>, the component of the position vector '''r''' perpendicular to the velocity vecto

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