Answer to Question #295182 in Mechanics | Relativity for Rick

Question #295182

What is the kinetic energy of an electron having a rest mass of 9.1 x 10^-31 kg traveling at 65% speed of light?

Expert's answer

"W=E-E_0=mc^2-m_0c^2=\\Delta mc^2=(\\frac 1{\\sqrt{1-\\frac{v^2}{c^2}}}-1)m_0c^2,"

"W=0.16~MeV."

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