How does the mass and size of a spacecraft influence the amount of energy needed for it to move through the vacuum of space?

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How does the mass and size of a spacecraft influence the amount of energy needed for it to move through the vacuum of space?

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Anonymous 0 Comments

The size makes no difference, the mass does. The size and shape would only matter for other reasons such as maintaining a rotational section for artificial gravity, going into atmospheres, or keeping the drive section segregated from the rest of the craft. The mass is what defines the momentum change required to move.

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