How do we calculate a spacecraft’s travel time?
Divide distance by speed—but under which assumptions? Work through a simple travel model, check the units and distinguish its answer from a real mission duration.
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Divide distance by speed—but under which assumptions? Work through a simple travel model, check the units and distinguish its answer from a real mission duration.
A passenger stands still in a carriage yet moves past the platform. Compare reference frames and distinguish distance, displacement, average speed and average velocity.