Question about relativity theory

nufa19 · Apr 27, 2013

the total energy of a proton is 3 times it rest energy.
-find the proton's rest energy in eV
-what is the speed of the moving proton?
-what is the proton's momentum?
please help me..i don't know how to solve it

tiny-tim · Apr 27, 2013

welcome to pf!

hi nufa19! welcome to pf!

start by writing the equation that relates total energy and rest energy

(if you don't know it, look it up!)

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