Calculate the kinetic energy of a proton moving at 95% of the speed of light. (c = 3x10^8 m/s, m_p = 1.67x10^-27 kg) [4 marks]
KE = 0.5mv2 [1] v = 3x108 * 0.95 = 2.85x108 [1] KE = 0.5 * 1.67x10-27 * (2.85x108)2 [1] KE = 6.782 x10-11 J [1]
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