Two Spacemen Are Floating Together with Zero Speed in a Gravity-Free

question 69

Multiple Choice

Two spacemen are floating together with zero speed in a gravity-free region of space. The mass of spaceman A is 120 kg and that of spaceman B is 90 kg. Spaceman A pushes B away from him with B attaining a final speed of 0.5 m/s. The final recoil speed of A is:

• A) zero
• B) 0.38 m/s
• C) 0.5 m/s
• D) 0.67 m/s
• E) 1.0 m/s

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Definitions:

Time Deprivation

A condition of experiencing less time than is needed to perform one's tasks or activities, often leading to stress or anxiety.

Representative Sample

A segment of the population that precisely represents the characteristics of the whole population.

Population of Interest

A specific group of individuals or entities that a researcher or study aims to understand or draw conclusions about.

Independent Variable

In a study, the variable that the researcher alters to determine its impact on the dependent variable.