- A firework rocket launched vertically explodes into two pieces X and Y when it reaches its maximum height. The mass of X is greater than that of Y.
Three statements are made about the pieces immediately after the explosion:
I. The kinetic energy of X is less than that of Y.
II. The magnitude of the momentum of X is equal to that of Y.
III. The total momentum after the explosion has increased.
Which of these statements are correct?