When a rod moves at a relativistic speed v, its mass ________________ .

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KollegeApply · Accepted Answer

must increase by a factor of γ If a rod is moving at a relativistic speed v, its mass is given by m = \gamma m_o = m_o/$\sqrt$(1 - v^2/c^2) Here, \gamma = 1/$\sqrt$(1 - v^2/c^2) Thus, its mass must increase by a factor of gamma.

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