Friction or Resistance
Frictional force
A force that tends to oppose motion
oppose the motion of an object in contact with a surface. It is dependent on the nature of the surfaces in contact and the normal force pressing them together.
The force that always acts to oppose motion is called friction. Friction occurs between two surfaces in contact and creates resistance to the motion of one surface over the other.
The two forces that oppose motion are friction and air resistance. Friction is the force that acts opposite to the direction of motion when two surfaces are in contact, while air resistance is the force that opposes an object's motion through the air.
Friction.
because of the inertia of the object as stated by Newton's first law of motion.
Inertia is a property of matter that makes it harder to move, so that is probably what you are thinking of, but technically, forces do not oppose motion. Depending upon the direction in which a force is applied, one force can oppose another force that is acting in an opposite direction, but forces are not opposed to motion as such.
The force that acts to oppose motion is called friction. Friction occurs when two surfaces rub against each other, creating resistance that makes it harder for objects to move.
There are many types of forces that oppose motion such as friction, drag and most universal, gravity.
The frictional force needed to start an object at rest into motion is the static frictional force. This force must be overcome by an external force before the object can start moving. Once the object is in motion, the kinetic frictional force will oppose its movement.
Static friction opposes motion by creating a force that resists the initial movement of an object. This force acts in the opposite direction of the applied force, preventing the object from sliding or moving when a force is applied to it.