Can the total linear momentum of the universe be zero? Momentum is defined as the product of mass and velocity. But the universe as a whole is not moving (an assumption) although it is expanding therefore velocity=zero. To really see whether the universe is moving or not, a vantage point outside of spacetime is needed. But this is impossible.(adsbygoogle = window.adsbygoogle || []).push({});

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# Total Momentum of the Universe

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