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Relative speed

?If two different objects are interacting towards themselves at opposite direction at a speed of light both. Then will the relative speed be taken as 'c' or '2c' ?

  • Soudip
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2 Answers

  • its 0.99C use relatistic vecolity formula also this question is the example of pair production

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  • strongPeople say light always travels at speed c./strongbr /Light always travels at speed c relative to an inertially moving observer. (Or to an inertial frame that is momentarily moving with your observer.)br /strongPeople say that nothing can go faster than c/strongbr /Nothing can go faster than speed c relative to an inertially moving observer. (Or to an inertial frame that is momentarily moving with your observer.)br /strongThe distance between light moving in two directions grows at speed c/strongbr /Each beam of light is moving at speed c relative to the person on the ground. So the first rule is fine. And if someone could go at speed c then we might have a problem, but no one ever claimed observers can move at speed c relative to another observer.br /So we can actually conclude that inertial frames can't move at speed c relative to an inertial frame and so therefore neither can observers.br /Your result demonstrates that not only is light speed a maximum speed for anything, it is a speed that observers can not achieve, they must always go less than c.

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