Kinetic energy of rocket explosion

1. The problem statement, all variables and given/known data

a rocket explodes in flight into two equal mass pieces still going in the same direction with one piece moving twice as fast as the other. What is the ratio of the total kinetic energy of the pieces just after the explosion to that of the rocket just before?

2. Relevant equations

3. The attempt at a solution

http://ift.tt/1e7Trjs

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