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Dynamic pressure is defined as

  • A.The density times the velocity
  • B.The pressure measured at the stagnation point
  • C.The difference between total and static temperature
  • D.One half the density times the velocity squared

Answer: D

Dynamic pressure, written q, equals one half rho V squared, and it appears in the definition of every aerodynamic coefficient. It is not itself a pressure that a static tapping would read, but a convenient grouping with the units of pressure.

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