Posted on 12/02/2019 5:17:30 AM PST by w1n1
I should said the bullet traces out a curved line in space, but traces out a straight line on the disc. The line on the disc is what matters because the target is on the disc.
Sorry for the delayed reply. I think you are misinterpreting the rotating disc situation.
F = Ma and Newtons laws apply in the inertial frame. Once the bullet leaves the barrel, it travels in a straight line in inertial space unless acted on by an outside force. Gravity is a force. Wind is a force but we are assuming no wind. So the bullet travels in a straight line in inertial space and ‘appears’ to travel in a curved line in the rotating frame. In both cases it is acted on only by gravity.
In the link you sent earlier, the gentleman discussing the Coriolis effect specifically talks only to elevation (listen at the end) and he shoots only east and west so that Earth spin effect on windage is not part of his example.
Cheers
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