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Module 1: Basic Concepts - Systems of Units - Answers

Q icon #1
In the American Engineering System, how do you distinguish between a mass of 100 pounds and a weight (i.e. a force) of 100 pounds?
A icon
Answer: To designate mass, use the term "pound mass" abbreviated as lbm.

To designate force (or weight), use the term "pound force" abbreviated as lbf.

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