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Decrease friction .
INCREASE
Wax, due to it filling the pores that cause friction will reduce friction.
lubrication decreases friction unless you're lubricating with sandpaper.
To decrease the forces that opposes motion
To increase friction, you can increase the roughness of the surfaces in contact, increase the normal force pressing the surfaces together, or use materials with higher coefficients of friction. To decrease friction, you can use lubricants to reduce surface roughness and create a barrier between the surfaces, reduce the normal force acting on the surfaces, or use materials with lower coefficients of friction.
Presence of friction, incline and so on.
Friction will generally increase as the incline increases. This is because the normal force acting on the object will also increase with the angle of the incline, resulting in greater friction between the surfaces in contact.
Gravity, friction, or wind drag.
add or remove lube
Brakes increase friction in order to slow down or stop a vehicle. When the brake pads clamp down on the brake rotors, the friction between them generates heat and slows down the rotation of the wheels.
No, it will lubricate the gears. Decrease friction.