A body is at rest it means there is no force acting on the body.
If a body is at rest, it means no force is acting on it
It is stated that every action has a equal and and opoosite direction so if a body is at rest and there there is no net externel force acting on it so there are any other force acting on the body like frictional is the force acts when only a body is in motion
The force which opposes an external force acting on a body while it is still at rest is called:
A body is at rest though forces act on it. Then