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| | Velocity - Wikipedia, the free encyclopedia (Site not responding. Last check: 2007-11-07) |
 | | The kinetic energy (movement energy) of a moving object is linear with both its mass and the square of its velocity: |
 | | In connection with polar coordinates, 2D velocity can be decomposed into radial velocity, away from or toward the origin, and transverse velocity, in the perpendicular direction, changing the direction of the body from the origin, and equal to the distance to the origin times the angular velocity. |
 | | Angular momentum in scalar form is the distance to the origin times the transverse speed, or equivalently, the distance squared times the angular speed, with a plus or minus to distinguish clockwise and anti-clockwise direction. |
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