A Man Standing on the Platform of a Railroad Station

question 81

Multiple Choice

A man standing on the platform of a railroad station observes two trains approaching him from opposite directions at speeds of 0.5c and 0.75c,respectively.At what speed does one train move with respect to the other?

• A)1.25c
• B)0.25c
• C)0.63c
• D)0.91c
• E)0.47c

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Definitions:

Nuts

Edible seeds encased in a hard shell, often consumed as a snack or used as an ingredient in various dishes.

Berries

Fruits that are characterized by their soft texture and seed-containing interior; commonly consumed fresh or in various culinary preparations.

Utility Function

A mathematical representation of how different bundles of goods or services are ranked in terms of their utility or satisfaction to a consumer.

Marginal Rate of Substitution

The rate at which a consumer is willing to substitute one good for another while maintaining the same level of utility.