Originally Posted by
A Squared
And what you're not grasping is that going from stationary to 120 knots is the identical change in velocity as going from 60 knots east to 60 knots west, and it requires the identical force exerted on the airplane by the air for the identical period of time, and both scenarios require overcoming the identical amount of inertia.
No not an identical force.
0 to 120 requires a tangential force
Making a 180 requires a centripetal force
In purely Newtonian terms force is force but for an aircraft, tangential and centripetal forces have quite different effects because it envolves rotating forces.
Ask a mathematician