Static friction. The frictional force is greater then the force applied, meaning the object can't move.
Assuming that the object is not moving before the force is applied, static friction is what keeps it from moving.
Friction.
Friction depends on the surface that the object is going against. If an applied force is used to push a box on a ground, the friction is the surface of the ground, may the ground be rough or smooth, there is a force that goes against the applied force. Air friction is also a type of friction that many physics question does not account for, because it is a virtually small force.
the main reason for doing so is that the surface becomes smooth n in terms of science to reduce "friction" that wud exist between the board n the striker due to which it will move more swiftly with lee deployment of power..!!
The roughness of the two objects coming in contact determines the degree of friction.
technically water is never stationary as it is made up of moving particles
answer it yourself ;)
Static
If an object is stationary on a surface then the forces acting on it are the Gravitational force and the Normal force(the force of the surface pushing back against the object). Technically you could be pulling(or pushing) that object from opposite directions with equal forces and it would remain stationary. The important thing to understand is that a stationary object remains stationary so long as the net forces applied to it equal zero.
Static friction is not necessarily an applied force, but something that occurs when there is an applied force. Static friction occurs when there is no motion and there is a force being applied to an object on a surface.
It is friction force
A lubricant
friction is produced on rough surface... so like we use oil and Greece to reduce friction because it disconnet the contact of the object from the rough surface.......
Kinetic friction is commonly thought of as the friction between two objects while those two objects slide against each other. To determine the coefficient of kinetic friction (for an object under the influence of gravity on some surface), one needs to determine the angle at which the sliding object moves at a constant speed down the other object (think of a flat piece of rubber sliding down a flat plank of wood). This is different from static friction where the sliding object has some applied force to move along a surface, but that object is stationary because of the friction applied by the surface. To determine the coefficient of static friction, one needs to determine the angle at which the sliding object begins to move down the surface.
Friction.
weight ,roughness of the surface and applied force
If before .........increase the friction of surface If after............increase the mass of stationary object
friction depends on type of surface and force applied its not dependent on the mass till gravitation is taken into account
F net=F applied - F friction