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Before writing equilibrium equations for a rigid body, an engineer should first draw a:
ASales projection
BSeating chart
CFree-body diagram
DCircuit schematic
Answer & Solution
Correct answer: C. Free-body diagram
1. Every force is shown on it.
2. The body is isolated from its surroundings.
3. It is a free-body diagram.
_Source: OpenStax University Physics Volume 1, Chapter 12, Static Equilibrium and Elasticity._
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