A 5000-Kg Freight Car Moving at 2 M/s Runs into a 10,000-Kg

question 29

Multiple Choice

A 5000-kg freight car moving at 2 m/s runs into a 10,000-kg freight car at rest.They couple upon collision and move away as one body at

• A)2 m/s.
• B)1 m/s.
• C)2/3 m/s.
• D)1/3 m/s.

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Definitions:

Radon Exposure

The contact with radon gas, which is a naturally occurring radioactive gas that can lead to lung cancer upon prolonged exposure.

Second-Leading Cause

A term used to denote the cause ranked as the second most common or significant factor contributing to a condition or event.

Cancer

A group of diseases involving abnormal cell growth with the potential to invade or spread to other parts of the body, characterized by genetic mutations and often requiring complex treatments.

Radon-222

A radioactive gas that is a decay product of uranium, which can accumulate in buildings and increase the risk of lung cancer upon exposure.