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12
Swerve Motion
Following our procedure of slowly introducing complexity into the description of pro-
jectile behavior we shall now develop equations to characterize the remainder of what is
known in general as swerve motion. We saw in Chapter 11 that a mass asymmetry can
cause projectile motion transverse to the original line of re even in a vacuum. We stated
in that section that a dynamic projectile imbalance was more common than a static imbal-
ance but either can actually occur.
Chapter 6 explained many aspects of projectile behavior that arise due to the presence
of the air stream. All of the coefcients were functions of the angle of the ...