A Shell Explodes into Two Fragments,one Fragment 25 Times Heavier

question 13

Multiple Choice

A shell explodes into two fragments,one fragment 25 times heavier than the other.If any gas from the explosion has negligible mass,then

• A) the momentum change of the lighter fragment is 25 times as great as the momentum change of the heavier fragment.
• B) the momentum change of the heavier fragment is 25 times as great as the momentum change of the lighter fragment.
• C) the momentum change of the lighter fragment is exactly the same as the momentum change of the heavier fragment.
• D) the kinetic energy change of the heavier fragment is 25 times as great as the kinetic energy change of the lighter fragment.
• E) the kinetic energy change of the lighter fragment is 25 times as great as the kinetic energy change of the heavier fragment.

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