Floating bullet theory, riddle me this...

[Koda]

1038mph to be exact, what the Earth rotates exactly at the equator. For gunners that 1522fps, reasonable in many cartridges.
So this theory is if you stand at the equator, fire a gun (of that velocity) exactly west, the bullet is simply floating.... now if I grasp that correctly, it means its not moving just floating for a split second until gravity takes it over because you are the one moving backwards.

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[CamoDeafie]

1038mph to be exact, what the Earth rotates exactly at the equator. For gunners that 1522fps, reasonable in many cartridges.
So this theory is if you stand at the equator, fire a gun (of that velocity) exactly east, the bullet is simply floating.... now if I grasp that correctly, it means its not moving just floating for a split second until gravity takes it over because you are the one moving backwards.

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The only change is that it would appear to stay still relative to the stars, (ie, from outside the Earth) not the ground. It will still be traveling, and not appear to stay still from the ground for a split second.

It is the opposite of the Geostationary orbit in which the orbiting item seems to stay still relative to the ground

 

[Nutty4Guns]

 

[Andy54Hawken]

NWFA field trip is in order....
Andy

 

[CamoDeafie]

Counteracting the inertia of Earth's rotation

I am at the equator with a drone capable of 1000mph speeds and the ability to hover. If the sun (or another fixed point in space) was directly overhead and I waited for the earth to rotate 1000 miles then launched the drone and flew 1000mph against the earths spin till the sun was directly...

www.physicsforums.com

Edit. There's also the atmosphere that's spinning. Ergo, to look like it's staying still relative to the ground, you have to beat gravity, and be moving the same speed as the Earth's rotation.... Ergo, you're imparting just enough thrust to lift your mass to defeat gravity, and are moving at the same relative rotation speed... To hover. Helicopters, fans, jets, even balloons have done this.

 

[Koda]

The only change is that it would appear to stay still relative to the stars, (ie, from outside the Earth) not the ground. It will still be traveling, and not appear to stay still from the ground for a split second.

It is the opposite of the Geostationary orbit in which the orbiting item seems to stay still relative to the ground

But from space it wouldnt be moving at all... ?

 

[GrayGoose]

The Theory of Relativity is at play.

Did the bullet fly over the ground, or did the ground move beneath the bullet?

 

[CamoDeafie]

But from space it wouldnt be moving at all... ?

Correct, only from space, and disregarding air resistance and gravity.

 

[Pepe-lepew]

Velocity is relative to something. Velocity relative to you is different than velocity relative to a point in space. There is a simple calculation used to convert velocity between different relative objects.

 

[Koda]

This is one of those fun but useless facts, it was just interesting to think about a bullet floating there.

 

[VinnieBoomBah]

View: https://www.youtube.com/watch?v=BLuI118nhzc

 

[CamoDeafie]

You know what this reminds me of? That really insane sounding idea.. of having giant conveyor belt under a jet plane and asking, could it take off from a conveyor belt without moving relative to the ground?

View: https://youtube.com/shorts/qM-APNpMZOw?si=csvUoMWG0qphFFK7

 

[Koda]

You know what this reminds me of? That really insane sounding idea.. of having giant conveyor belt under a jet plane and asking, could it take off from a conveyor belt without moving relative to the ground?

View: https://youtube.com/shorts/qM-APNpMZOw?si=csvUoMWG0qphFFK7

I remember this and stumping a few friends with this one to the point of frustration... lol.

 

[Mark W.]

This is one of those fun but useless facts, it was just interesting to think about a bullet floating there.

How about an aircraft flying backwards. If an airplane is flying through air moving faster then the stall speed of the aircraft it is possible for the aircraft to fly backwards in relation to the ground.

 

[Koda]

How about an aircraft flying backwards. If an airplane is flying through air moving faster then the stall speed of the aircraft it is possible for the aircraft to fly backwards in relation to the ground.

Have never heard of that and have a harder time visualizing that than a floating bullet or conveyor-belt takeoff...

 

[VinnieBoomBah]

How about an aircraft flying backwards. If an airplane is flying through air moving faster then the stall speed of the aircraft it is possible for the aircraft to fly backwards in relation to the ground.

Probably not, wings are shaped to produce lift going 'forward' and it's unlikely that they would produce much if any lift with the air flow reversed

 

[parallax]

navy gun ships have to calculate vertical parallax, curvature of the earth, rotation of the earth, air resistance, range wind, superelevation of target,,, etc.. etc.. " me: lucky to hit a 2 foot target at 200 yards. "

 

[TTSX]

Someone visited the wacky tobaccy store...

 

[Koda]

So then if you fired a gun at the equator due west it would be the target that "ran into" the bullet and you would be the one who was "blown away"... ?

This just has got to be true...

 

[Xmark1]

1038mph to be exact, what the Earth rotates exactly at the equator. For gunners that 1522fps, reasonable in many cartridges.
So this theory is if you stand at the equator, fire a gun (of that velocity) exactly west, the bullet is simply floating.... now if I grasp that correctly, it means its not moving just floating for a split second until gravity takes it over because you are the one moving backwards.

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The correct answer depends on whether or not the quarks in said projectile are super positioned in a unified state of quantum entanglement.