If we measure time by the solar year, would we calculate speed on another planet, like mars maybe, differently based on it’s solar year? Or would we use “Earth speed”?
In: 0
Speed is relative as well.
Though I think you’re misunderstanding some things.
How fast something is going depends on the perspective of the observer.
We say something like “X is moving at Y kilometers per hour relative to us” for example.
Say someone on a rocket going .7 the speed of light (this is called C) relative to us, launches a missile going at .5 C relative to them straight ahead.
He sees the missile traveling at .5 C, but we do not see the missile going at 1.2 C, instead we see it going at 0.8889 C relative to us.
We agree that the missile is going faster than the rocket, we just disagree on how much faster.
If we measure time by the solar year, would we calculate speed on another planet, like mars maybe, differently based on it’s solar year? Or would we use “Earth speed”?
In: 0
Speed is relative as well.
Though I think you’re misunderstanding some things.
How fast something is going depends on the perspective of the observer.
We say something like “X is moving at Y kilometers per hour relative to us” for example.
Say someone on a rocket going .7 the speed of light (this is called C) relative to us, launches a missile going at .5 C relative to them straight ahead.
He sees the missile traveling at .5 C, but we do not see the missile going at 1.2 C, instead we see it going at 0.8889 C relative to us.
We agree that the missile is going faster than the rocket, we just disagree on how much faster.
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