A Photograph of the Two-Dimensional Elastic Collision of Two Particles

question 20

Multiple Choice

A photograph of the two-dimensional elastic collision of two particles shows a particle of mass m₁ approaching a stationary particle of mass m₂. As a result of their interaction, the incident particle moves away along a line that makes an angle of 30° with its original path, and the other particle moves away along a line that makes an angle of 30° to the other side of the original path of the incident particle. What is the ratio of the masses, m₁/m₂?

• A) 0.5
• B) 1
• C) 2
• D) 3
• E) 4

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Definitions:

Hominins

Members of the human lineage, including modern humans and all our direct ancestors, characterized by bipedalism and larger brain sizes than other primates.

Homo Sapiens

The scientific name for modern human beings, characterized by a capacity for language, social structure, and tool use.

Genus Homo

A category in biological taxonomy that includes humans and our closest extinct relatives.

Animal Lineages

The categorization and hierarchical arrangement of various animals based on their evolutionary relationships and characteristics.