The mass of a proton at rest is m_. If the proton is moving so fast that its total energy is three times its rest energy,then what is the kinetic energy of the proton? A)mc² B)2mc² C)3mc² D)4mc²

Question

Quizplus · Accepted Answer

The kinetic energy (KE) of the proton is the total energy minus the rest energy. If the total energy is three times the rest energy (3mc^2), the kinetic energy is 3mc^2 - mc^2 = 2mc^2.

The Mass of a Proton at Rest Is M