At what speed is the mass of an electron double its rest mass?
A) 0.500c
B) 0.650c
C) 0.707c
D) 0.866c
E) 0.960c

Name: At what speed is the mass of an electron double its rest mass? A) 0.500c B) 0.650c C) 0.707c D) 0.866c E) 0.960c
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Question

Quizplus · Accepted Answer

The relativistic mass of an object doubles when its speed is approximately 0.866c, according to the Lorentz factor formula: γ = 1/√(1-v²/c²). When γ = 2, solving for v gives v ≈ 0.866c.

At What Speed Is the Mass of an Electron Double