An Open Boxcar Has a Mass of 30,000 Kg and Is

question 64

Multiple Choice

An open boxcar has a mass of 30,000 kg and is moving on a level railroad track at 4.00 m/s. 1,000 kg of water falls straight down into the boxcar. The speed of the boxcar after the water falls into it is

• A) 7.01 m/s.
• B) 6.55 m/s.
• C) 5.02 m/s.
• D) 3.87 m/s.
• E) 2.89 m/s.

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Definitions:

Job Incentive

A motivational factor or benefits given to employees to encourage increased productivity.

Cognitive Psychology

The branch of psychology focusing on mental processes such as perception, memory, thought, and problem-solving, and how they may affect behavior.

Internal Mental Events

Psychological occurrences within the mind such as thoughts, feelings, and memories that are not observable by others.

Behaviourism

A branch of psychology focused on studying and modifying observable behaviors.