Two Objects of Equal Mass Traveling Toward Each Other with Equal

question 47

Multiple Choice

Two objects of equal mass traveling toward each other with equal speeds undergo a head on collision. Which one of the following statements concerning their velocities after the collision is necessarily true?

• A)They will exchange velocities.
• B)Their velocities will be reduced.
• C)Their velocities will be unchanged.
• D)Their velocities will be zero.
• E)Their velocities may be zero.

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Definitions:

Price Concession

A reduction in the price of a good or service, often to facilitate a sale or agreement.

Limit-Sell Order

An order to sell a security at a specified price or better.

Maintenance Margin

The minimum amount of equity that must be maintained in a margin account after a purchase has been made, to continue holding the position.

Initial Margin

The percentage of the purchase price of securities (that can be bought on margin) that the investor must pay with his/her own cash or marginal securities.