Smooth lubricated surfaces.
Friction always resist motion if the object is sliding on surface.
Rolling motion is easier than sliding motion because rolling motion has a lower friction force exerted upon the object than sliding motion.
no because you would be sliding if there was no friction.Friction resists the motion caused by another force
yes -edict- _______________ Yes, Friction is surface resistance to relative motion, as of a body sliding or rolling.
rolling motion occurs when a round surface (cylinder, wheel, ball) is rotating as it moves in a given direction across a surfaceslipping motion occurs when a round surface (cylinder, wheel, ball) is not rotating but sliding as it moves in a given direction across a surface
Kinetic friction is the friction that arises between surfaces in relative motion. Sliding friction is the friction that occurs when an object slides over a surface.
if you on apex and it is not a true or false statement the answer is ((surfaces))
Friction is a force between to surfaces that resists motion. Static friction is the resistance to motion when two surfaces are not moving relative to each other. Sliding friction is the resistance to motion when two surface are sliding, one over the other. Sliding friction is less than static friction for the same two surfaces. For rolling friction an object is rolling, like a tire on a road. It's what provides traction between the two and makes the car "go." For a tire on a road, rolling friction is less than sliding friction.
it start melting again
I assume this relates to a wheel. When the wheel is rolling, the surface of the wheel is not moving relative to the surface of the road when they are in contact. however, the wheel deforms slightly and because of this, the normal force slightly opposing the motion of the wheel rather than simply pushing it up. This is rolling friction or more commonly known as static friction. When the wheel is sliding, the wheel is sliding over the road's surface, meaning that there is relative movement between the wheel and the road. this is known as sliding friction or kinetic friction.
D.slide-it involve sliding or rolling motion but not the type of backward rotation as in slump. A hummocky surface is form of low relief in D.slide.
The sliding friction acts in the opposite direction of motion.