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At 12:43 PM 1/23/2007, Oren, you wrote:
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Is the bullet still spinning when it reaches its maximum height?
Or, put another way, does a bullet reach terminal velocity before or
after the air friction stops the bullet from spinning and then produces
the tumbling?
Oren Quist, South Dakota State
The data I now have indicate that a bullet retains the majority
of its spin momentum at the peak of the trajectory.
It's also found that a back-first flight of a bullet is stable,
so that bullets may sometimes descend (blunt) tail first.
This leads to a higher terminal velocity compared to the tumbling
bullet's TV. (X2)
This appears to be the major methodical weakness of the
Myth Busters' effort. They did not test a spun bullet in several
of their setups.
Brian Whatcott Altus OK Eureka!
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