Posted by: Jack Mankin (MrBatspeed@aol.com) on Sat Jan 21 17:54:40 2006

>>> then your saying that your answer to Tyler was wrong.

http://www.batspeed.com/messageboard/output/25356.html <<<

Hi Ray

Your question reminds me of a question/problem in my text book “Laws of Physics.” The stated conditions were:
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(1) The barrel of a gun was placed horizontally 6 feet above a flat surface.
(2) The 150-gram bullet travelling at 3000 fps strikes the ground 415 feet away.
(3) At the same time the gun is fired, a like bullet is dropped from the same height.

Question; How much longer would it take the bullet that traveled 415 feet to hit the ground than the bullet that dropped straight down?

Answer; They would strike the ground at the same time. The pull of gravity is the same regardless of the bullet’s linear speed.
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I later read an article from Remington Firearms. They ran an actual test and found that due to the gyro effect on the spinning bullet fired from the gun, it actually stayed up .005 seconds longer than the dropped bullet. --- I carried a copy of both papers with me and won a good number of drinks with one or the other … depending on how the other fellow bet.

Ray, it just depends on just how exact a standard we can use in video analysis

Jack Mankin