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Search options not deleted user 11095

Use this tag for questions related to how objects move relative to other objects dependent on your frame of reference, and how this applies to special relativity.

4 votes
5 answers
15k views

How will you measure speed in km/hr in space?

How is the speed of an object in space measured? Also more importantly how do you measure your own speed in space? On the road we use a speedometer which tells us the speed easily. How is it done in …
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