Atoms And Nuclei

A heavy nucleus N, at rest, undergoes fission N \(\to\) P + Q, where P and Q are two lighter nuclei. Let \(\delta\) = M_N \(-\) M_P \(-\) M_Q, where M_P, M_Q and M_N are the masses of P, Q and N, respectively. E_P and E_Q are the kinetic energies of P and Q, respectively. The speeds of P and Q are v_P and v_Q, respectively. If c is the speed of light, which of the following statement(s) is(are) correct?