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Old 05-05-2020, 05:00 PM   #57 (permalink)
JulianEdgar
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Quote:
Originally Posted by M_a_t_t View Post
Answer: It is just a simplification of the aero drag formula. Since both runs should be in similar enough condition you can cancel all factors except Cd and Velocity (unless reason to suspect a change in area). The change in velocity then becomes the ratio that the Cd(or CdA) has changed.
No, the ratio of the change in velocities squared becomes the proportional change in Cd.

(Maybe watch the second video?)
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