What is the kinetic energy of a particle of mass m that has a total energy four times its rest energy? A) 5 mc² B) 4 mc² C) 3 mc² D) 2 mc² E) 1 mc²

Name: What is the kinetic energy of a particle of mass m that has a total energy four times its rest energy? A) 5 mc 2 B) 4 mc 2 C) 3 mc 2 D) 2 mc 2 E) 1 mc 2
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Quizplus · Accepted Answer

The total energy (E) is given as four times the rest energy (E₀ = mc²), so E = 4mc². The kinetic energy (KE) is the total energy minus the rest energy: KE = E - E₀ = 4mc² - mc² = 3mc².

What Is the Kinetic Energy of a Particle of Mass