Two protons (each having rest mass m =1.67 x 10^-27 kg are primarily moving with equivalent speeds in opposite directions. The protons continue to exist after a collision which generates an eta^0 particle. The rest mass of the eta^0 is m of eta = 9.75 x 10^-28 kg.
i) Determine v in units of c.
ii) Determine the kinetic energy E_k of each and every proton? (in MeV)
iii) Find the rest energy E_r of the eta^0?