All Problems

Relativistic Mechanics

Problem 1.370

A proton moves with a momentum \(p=10.0 \mathrm{GeV} / c\), where \(c\) is the velocity of light. How much (in per cent) does the proton velocity differ from the velocity of light?

Reveal Answer
(cv)/c=1[1+(m0c/p)2]1/2=0.44%(c-v) / c=1-\left[1+\left(m_{0} c / p\right)^{2}\right]^{-1 / 2}=0.44 \%