Explosions in One Dimension: a Shell Explodes into Two Fragments

question 24

Multiple Choice

Explosions in one dimension: 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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Definitions:

Liabilities

Debts or obligations of a business that arise during the course of its operations.

Withdrawals

Refers to the act of taking money out of a bank account, or in the context of partnerships, amounts taken out by partners for personal use.

Expenses

Costs incurred by a business in the process of earning revenues, including utilities, rent, payroll, and materials.

Owner's Equity

The residual interest in the assets of the entity after deducting liabilities, representing the ownership interest in the company.