a) $M_o = \dfrac{2m_o}{\sqrt{1 - \frac{v^2}{c^2}}}$ b) no energy is lost c) $2m_oc^2(\dfrac{1}{\sqrt{1-\frac{v^2}{c^2}}} - 1)$ Giancoli 6th Edition, Chapter 26, Problem 34(2:39) Chapter 26, Problem 34 is solved. Start My Free Week View sample solution