A 7000-Kg Coal Car of a Train Coasts at 7

question 47

Multiple Choice

A 7000-kg coal car of a train coasts at 7.0 m/s on a frictionless track when a 3000-kg load of coal is dropped vertically onto the car.The coal car's speed after the coal is added is

• A)2.1 m/s
• B)3.0 m/s
• C)4.9 m/s
• D)7.0 m/s
• E)16 m/s

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Definitions:

Scope

The extent or range of view, reach, or effect. In project management, it typically refers to the detailed set of deliverables or features of a project.

Inductive Reasoning

"Reasoning from specific observations to make generalizations."

Deductive Reasoning

Reasoning from a general case that is known to be true to a specific instance.

Abductive

A form of reasoning that begins with observations and seeks to find the simplest and most likely explanation.