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Thread: Effects of Rotation on Independent Movement

  1. #1 Effects of Rotation on Independent Movement 
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    Say the Sun were to instantaneously disappear from existence. The Earth is flung from its gravitational orbit into dead space.

    Now I would assume that the Earth would move in a straight path tangent to the orbital curve.

    And that comes to my question, would Earth's rotation affect its movement through empty space?

    I would think so because that's what a curve ball does in baseball, however it might be because of its interaction with the air and partially by gravity.

    Well there's no gravity or frictional entities in space, so what would happen?


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  3. #2  
    Comet Dust Collector Moderator
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    No it would not. It would simply be a mass moving forward (subject to deflection by the rest of the mass of the solar system, since you only disappeared the sun)


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  4. #3  
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    Quote Originally Posted by MeteorWayne View Post
    No it would not. It would simply be a mass moving forward (subject to deflection by the rest of the mass of the solar system, since you only disappeared the sun)
    Concerning the other bodies, disregard them.

    So its rotation is independent of its movement? Even if the Earth was spinning at 100 kabillion lightyears per temporal Planck unit, it wouldn't affect its straight path? (for the sake of expression)
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  5. #4  
    Brassica oleracea Strange's Avatar
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    Quote Originally Posted by brody View Post
    I would think so because that's what a curve ball does in baseball, however it might be because of its interaction with the air and partially by gravity.
    Exactly right.
    ei incumbit probatio qui dicit, non qui negat
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  6. #5  
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    Okay. I know this sounds crazy. But what about interacting with the air in its own atmosphere?
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  7. #6  
    Quagma SpeedFreek's Avatar
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    Yes, the Earth's rotation has a small effect on its own atmosphere, due to the Coriolis effect. But this effect is not strong enough to deflect the atmospheres motion through space relative to the Earth.



    A curveball is caused by the spin on the ball, when combined with the motion of the seams relative to the direction of travel, causing pockets of turbulence and higher pressure around the ball which change its motion as it moves through the atmosphere.
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  8. #7  
    Forum Freshman Robinol's Avatar
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    The earth will move tangentially in the space till it comes into the gravitational field of any heavenly body.
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