Answer
See explanation.
Work Step by Step
a. Charge must be conserved. The only possible decay is to a $\pi^+$ and a $\pi^0$.
b. The kinetic energy comes from the mass decrease. From Table 44.3, we subtract the mass of the products from the mass of the starting particle, and find a mass difference of $219.1 MeV/c^2$. The KE release is 219.1 MeV.
