Answer to Question #288635 in Mechanics | Relativity for Rossy

Question

What is a rigid body?is there any such in nature?

And what is rotational motion?give two examples of bodies that undergo this type of motion.

Answer 1

A rigid body is a theoretical concept of an ideal body that cannot be deformed and the distance between any two points on the surface of the body remains constant independently of what impact the body experiences. An example is diamond.

Rotational motion is the motion along a circular trajectory. The examples are a bucket tied to a string rotating in a circle and a satellite orbiting our planet Earth.