# Definition:Body

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## Definition

In the context of physics and applied mathematics, a **body** is an object (possibly idealized) which is imagined to have a material existence in the physical universe.

A **body** can be considered as an aggregate of particles to which it is possible to apply a force.

### Rigid Body

A **rigid body** is a body $B$ with the property that the distance between any two points of $B$ remains constant regardless of any external forces.

### Deformable Body

A **deformable body** is a body $B$ which is not rigid.

That is, when under the influence of a force, the distance between any two points of $B$ may not remain constant.

## Also see

- Results about
**bodies**can be found**here**.

## Sources

- 1975: Patrick J. Murphy:
*Applied Mathematics Made Simple*(revised ed.) ... (previous) ... (next): Chapter $1$: Mechanics: $(1)$ Rigid Bodies - 2014: Christopher Clapham and James Nicholson:
*The Concise Oxford Dictionary of Mathematics*(5th ed.) ... (previous) ... (next):**body**