A space craft of mass ‘𝑀’ and moving with velocity ‘𝑣’ suddenly breaks in two pieces of same mass 𝑚. After the explosion one of the mass ‘𝑚’ becomes stationary. What is the velocity of the other part of craft

A space craft of mass ‘𝑀’ and moving with velocity ‘𝑣’ suddenly breaks in two pieces of same mass 𝑚. After the explosion one of the mass ‘𝑚’ becomes stationary. What is the velocity of the other part of craft

Question: A space craft of mass ‘𝑀’ and moving with velocity ‘𝑣’ suddenly breaks in two pieces of same mass 𝑚. After the explosion one of the mass ‘𝑚’ becomes stationary. What is the velocity of the other part of craft