Answer:
(Low altitudes, normal temperatures / pressures, ordinary speeds.)
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Drag due to moving through the air, depends on the velocity and the objects drag coefficient in the equation:
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drag force (newtons) = velocity2 * drag coefficient
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some (typical) drag coefficients:
saloon car : 0.40
115 hp motorcycle ( with fairing) 0.23
person in freefall : 0.16