Question

what is rigid and non rigid body​

Answer 1

Answer:

In physics, a rigid body is a solid body in which deformation is zero or so small it can be neglected

When force is applied on a rigid body, there will be no change in the shape or size of the rigid body. In case of a non rigid body the force will distort shape and/or size of the body.

Answer 2

A rigid body is usually considered as a continuous distribution of mass. in case of non rigid there is no proper arrangement of particles.you can say as amorphous solid. a rigid body is a solid in which deformation is zero or so small it can be neglected.