if a fuel tank is launched empty and fuel is transfered to it later on it's rotational inertia stays as it was when it was empty

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    1,732 neodynamic

    @FlyingPotato_131 hggjguhghgghv

    3.3 years ago
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    @DrexxVolv it's not me, it's physics

    3.3 years ago
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    1,732 neodynamic

    @FlyingPotato131 .. you hurt my brane

    3.3 years ago
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    @DrexxVolv Newton's second law states that F=ma, in other words the force you need to accelerate a body is proportional to the body's mass. Similarly, the law of rotation (idk exactly what it's called) states that F=JB, where J is the rotational inertia of a body and B (it's usually beta but beta doesn't show up here) is the angular acceleration. J is always proportional to the mass of a body since a material point has a J=mR and a body can be approximated as a bunch of material points

    +1 3.3 years ago
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    1,732 neodynamic

    @FlyingPotato_131 Except in zero gravity. Mass doesn’t change how hard it is to move/rotate if there is no gravity.

    3.3 years ago
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    @DrexxVolv no. Both how hard it is to move and how hard it is to rotate an object depends on it's mass, whatever the gravity.

    +1 3.3 years ago
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    1,732 neodynamic

    That’s how zero gravity works.

    3.3 years ago

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