| 21. | Upon reaching a predetermined staging time, location, and velocity vector the aircraft releases the Pegasus.
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| 22. | Because the acceleration vector turns along with the velocity vector, they remain perpendicular to each other.
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| 23. | More precisely, the vorticity is a pseudovector curl ( rotational ) of the flow velocity vector.
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| 24. | The velocity vector of the center of mass is always perpendicular to the ground reaction force.
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| 25. | The velocity vector is the unit tangent vector.
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| 26. | Thus, in this case, the velocity vector is:
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| 27. | Hence, normal velocity vectors are not averageable.
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| 28. | This sideslip flow then produces a force in the horizontal plane to turn the vehicle's velocity vector.
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| 29. | That little energy interchange permitted the velocity vector to change but the kinetic energy to be conserved.
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| 30. | Thus, the tangential angle specifies the direction of the velocity vector, while the speed specifies its magnitude.
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