Question

What is a rigid body?

Answer 1

Rigid body:

1. Rigid body is a solid body, that does not deform or change its shape by applying force.
2. A rigid body is usually considered as a continuous distribution of mass.
3. The distance between any two points on the rigid body is constant regardless of any external forces exerted on it.

Diagram:

Example:

1. Metal rod
2. Ball bearing
3. Wooden block