Twin paradox

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21 years 2 months ago #6000 by tvanflandern
<BLOCKQUOTE id=quote><font size=2 face="Verdana, Arial, Helvetica" id=quote>quote:<hr height=1 noshade id=quote>[Jright]: I am traveling just one MPH less than the speed of light, and I throw a baseball in the direction of motion. How is it possible that I can throw it faster than one MPH?<hr height=1 noshade id=quote></BLOCKQUOTE id=quote></font id=quote><font face="Verdana, Arial, Helvetica" size=2 id=quote>

According to special relativity, you will think you are at rest, and can throw the baseball at any speed up to c. But an observer in another frame that thinks you are traveling one MPH less than c will apply the law of addition of velocities, and still get a result less than c.

In other words, in SR, the sum of two speeds is not v1 + v2. When the correct addition formula for relativoty is used, the sum of any two velocities cannot exceed c even if both are just slightly below c. -|Tom|-

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