Homework Statement
What is the momentum of a proton with 800MeV of kinetic energy?Homework Equations
E^2=p^2c^2+m^2c^4
The Attempt at a Solution
I know that E should be kinetic energy + rest energy, so I calculate rest energy first.
rest energy = mc^2= (1.67*10^-27)*(3*10^8)^2 = 939.57...