None.
Change your question for two OBJECTS and the answer is friction.
Static friction keeps an object from moving when a force is applied. It is the force that must be overcome to initiate movement of an object. Sliding friction occurs once the object is in motion.
It takes more force to make a stationary object start sliding because you need to overcome the static friction between the object and the surface. Once an object is already sliding, it requires less force to keep it moving due to kinetic friction, which is typically lower than static friction.
When a force acts on an object without touching it, the force is called a non-contact force. Examples include gravitational, electrostatic, and magnetic forces.
The force that opposes the sliding motion of two surfaces that are touching is called friction. Friction is a force that acts in the opposite direction to the direction of motion, and it arises due to the interactions between the surfaces at a microscopic level.
Frictional force acts to oppose the motion of an object in contact with a surface. It is caused by the interaction between the surfaces of the object and the surface it is sliding or resting on. This force can either help to prevent sliding (static friction) or resist the motion of sliding (kinetic friction).
Static friction keeps an object from moving when a force is applied. It is the force that must be overcome to initiate movement of an object. Sliding friction occurs once the object is in motion.
Contact Force
It takes more force to make a stationary object start sliding because you need to overcome the static friction between the object and the surface. Once an object is already sliding, it requires less force to keep it moving due to kinetic friction, which is typically lower than static friction.
Friction
When a force acts on an object without touching it, the force is called a non-contact force. Examples include gravitational, electrostatic, and magnetic forces.
The force that opposes the sliding motion of two surfaces that are touching is called friction. Friction is a force that acts in the opposite direction to the direction of motion, and it arises due to the interactions between the surfaces at a microscopic level.
That's the 'kinetic' kind..
no
Frictional force acts to oppose the motion of an object in contact with a surface. It is caused by the interaction between the surfaces of the object and the surface it is sliding or resting on. This force can either help to prevent sliding (static friction) or resist the motion of sliding (kinetic friction).
a contact force that acts to resist sliding between two surfaces that are touching.
You can increase the force of friction by increasing the normal force acting on the object. This can be done by adding weight to the object or increasing the angle at which the object is inclined. Additionally, you can roughen the surface of the object or the surface it is sliding on to increase friction.
unknown answer