A father racing his son has three-fifths the kinetic energy of the son, who has three-fifths of the father. The father speeds up by 3.0 m/s and then...

A father racing his son has three-fifths the kinetic energy of the son, who has three-fifths of the father. The father speeds up by 3.0 m/s and then has the same kinetic energy as the son.(a) What is the original speed of the father?(b) What is the original speed of the son?Would appreciate if anyone could help me out on this one. Thanks!