When can a spaceship be considered a material point?

A body can be considered a material point in the case when its size is much less than the movement that it makes, and the shape and size do not play a significant role.

A spaceship can be considered a material point when its movement around the earth is considered.

When a spacecraft is docked to an international station, it cannot be considered a material point. Their dimensions are commensurate and the dimensions of the ship play a significant role in the docking.



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