1. The problem statement, all variables and given/known data Cars B and C are at rest with their brakes off. Car A plows into B at high speed, pushing B into C. Assume the collisions are completely inelastic. What fraction of the initial energy is dissipated in the collision involving car C? Data: MA = 1010 kg; MB = 1250 kg; MC = 1470 kg. 2. Relevant equations Pinitial=Pfinal KE=.5mv^2 3. The attempt at a solution Pi=Pf m_a*Vo=(m_a+m_b+m_c)*Vo' Q+.5m_aVo^2=.5(m_a+m_b+m_c)Vo'^2; where Q is the kinetic energy lost I'm pretty sure these equations are correct but I don't know where to go from here?