traction
None. Change your question for two OBJECTS and the answer is friction.
Friction.
gravity
fk = uk*N Where fk = force of kinetic (sliding) friction uk = kinetic frictional coefficient (dependent on 2 materials sliding past each other) N = normal force (force being exerted perpendicular to the surface across which the object is sliding)
The force that prevents two forces in contact from sliding past each other is friction. Friction has the ability to keep things from moving.
The force that can move between surfaces is called friction. It resists the relative motion of solid surfaces, fluid layers, and material element sliding against each other.
true! When solid surfaces slide over each other, the kind of friction that occurs is called sliding friction.
i think its the centripetal force [force of attraction]
With a force called gravity. Each atom and molecule of the atmosphere has an atomic weight, which keeps it from floating away into space.
true! When solid surfaces slide over each other, the kind of friction that occurs is called sliding friction.
kinetic frictionA second opinion:Kinetic friction is the resistance to sliding motion when they're already moving.The beginning of sliding motion is resisted by static friction.
Friction is a force that is generated when two surfaces rub against each other. It is useful for preventing slipping or sliding.