Pls answer as soon as possible

A toy rocket is traveling at a velocity of 25.0 m/s vertically upward when it separates into two equal masses. If one of the masses continues at the same velocity, what is the velocity of the other mass just after the separation? O 50.0 m/s vertically up 50.0 m/s vertically down O 25.0 m/s vertically up OO 25.0 m/s vertically down