What is the direction of the frictional force?
Hereof, what is the direction of the friction?
The frictional force is the other component; it is in a direction parallel to the plane of the interface between objects. Friction always acts to oppose any relative motion between surfaces. For the simple example of a book resting on a flat table, the frictional force is zero.
Also, can friction be in the direction of motion? Friction tends to oppose any relative motion between objects, acting at the surfaces in contact. If there is relative motion, the frictional force is the kinetic force of friction. Static friction, acting in the direction you're walking. Kinetic friction, acting opposite to the way you're walking.
Then, what direction does the force of friction point?
The friction force points against the direction that the object would slide without friction. Static friction keeps gravity from pulling the cheese down the incline.
How do you find the magnitude and direction of frictional force?
As long as the applied force has a magnitude smaller than μsN, the force of static friction fs has the same magnitude as the applied force, but points in the opposite direction. The magnitude of the force of kinetic friction acting on an object is fk = μkN, where μk is the coefficient of kinetic friction.