Three Spaceships A, B, and C Are in Motion as Shown

question 4

Multiple Choice

Three spaceships A, B, and C are in motion as shown in the figure. The commander on ship B observes ship C approaching with a relative velocity of 0.83c. The commander also observes ship A, advancing in the rear, with a relative velocity of 0.48c. As measured by commander on ship B, at what speed is ship A approaching ship C?

• A) 1.3c
• B) 0.94c
• C) 0.25c
• D) 0.58c
• E) 2.2c

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Definitions:

Facial Expression

The movement or position of the muscles beneath the skin of the face, serving as non-verbal communication that conveys emotions, intentions, or social information.

Breathing Pattern

The characteristic rhythm and depth of breathing in an individual, which can vary depending on physical activity, emotional state, and health conditions.

Polygraph

A machine used to detect and record changes in physiological processes such as heart rate, breathing, and perspiration, often used in lie detection.

Physiological Measurement

The process of recording biological activities, such as heart rate or brain activity, often used in psychological research to assess responses.