A Spaceship Traveling at Constant Velocity Passes by Earth and Later

question 77

Multiple Choice

A spaceship traveling at constant velocity passes by Earth and later passes by Mars. In which frame of reference is the amount of time separating these two events the proper time?

• A) any frame of reference, inertial or not
• B) the spaceship frame of reference
• C) the Mars frame of reference
• D) any inertial frame of reference
• E) the Earth frame of reference

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Definitions:

Differences

The distinguishing characteristics or variations between items, individuals, concepts, or situations.

Strong

Possessing physical power, emotional resilience, or other attributes that enable effectiveness, stability, or endurance in a variety of contexts.

Weak

Lacking strength, effectiveness, or firmness, either in physical capacity, argumentative soundness, or character.