no static friction. It comes into play the moment there is an applied force. As the applied force F increases, f s also increases, remaining equal and opposite to the applied force (up to a certain limit), keeping the body at rest. Hence, it is called static friction .
Static friction opposes impending motion . The term impending motion means motion that would take place (but does not actually take place) under the applied force, if friction were absent. We know from experience that as the applied force exceeds a certain limit, the body begins to move. It is found experimentally that the limiting