📌 Statics studies how an object remains in equilibrium, whereas dynamics studies why and how an object follows a motion.
Statics asks how equilibrium is maintained, whereas dynamics asks why and how motion occurs.
1. When can a body be modeled as a particle in mechanics?
2. What characteristic defines a rigid body in mechanics?
3. An engineer examines why a moving vehicle accelerates after its driving force changes. Which branch of mechanics addresses this question?
What defines a particle in mechanics?
Its mass is considered concentrated at a point due to negligible size.
What is a rigid body in mechanics?
A combination of particles with unchanged shape and size.
How is a rigid body sometimes modeled?
As a particle with weight acting at its center of mass.
What does statics study in mechanics?
How an object remains in equilibrium.
What does dynamics study in mechanics?
Why and how an object follows a motion.
What does mass measure in a body?
The inertia of the body.
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