A - beam is brought to rest in a liquid hydrogen target. Here 0 are

A π^- beam is brought to rest in a liquid hydrogen target. Here π⁰ are produced by the ‘charge exchange’ reaction π^- + p → π⁰ + n. Find the energy of the π⁰, the kinetic energy of the n, the velocity of the π⁰ and the distance travelled by the π⁰ in a lifetime.