Kinetic energy is the energy minus the rest energy, so that is 1.5 times the rest energy.
The speed follows from E = gamma m c^2 = gamma times the rest energy.
So, gamma = 2.5 ------->
v = 0.917 c
A proton moving with a constant speed has a total energy 2.5 times its rest energy. What is the proton's:
a. speed
b. kinetic energy
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