A spacecraft passes you at 0.29 the speed of light. By what factor would its relativistic...

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Question

A spacecraft passes you at 0.29 the speed of light. By what factor would its relativistic energy increase if its speed doubled?

science physics

Answer 1

Answer #1

using the equation E = m / ( 1 - V² / C² )^1/2

E₂ / E₁ = ( 1 - V₁² / C² )^1/2 / ( 1 - V_²² / C² )^1/2

E₂ / E₁ = ( 1 - 0.29² X C² / C² )^1/2 / ( 1 - 2 X 0.29² C² / C² )^1/2

E₂ / E₁ = ( 1 - 0.29² )^1/2 / ( 1 - 2 X 0.29² )^1/2

E₂ / E₁ = 1.1748

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Answer 2

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