Question

The body will move only when in friction

Answer 1

Explanation:

The body moves only when an external force is applied to it. It stops when the frictional force acts on the object in the opposite direction

Answer 2

Answer:

The body will move only in friction as if there is a plain surface it will be difficult for us to move and there will be a risk to fall down.

If there is a rough surface it will be easy for us to move on it.