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Antilock Brake System (ABS) & tread on the tires.
No, sand does not reduce friction but increase friction.
Lubrication to reduce friction. To increase friction step on the brakes.
TO REDUCE FRICTION: We can use fine powder on the carrom board to reduce friction
Friction is the act of one surface rubbing against another. To reduce friction, use something that offers a small amount of friction. Smoother substances reduce friction. A way to reduce friction is to use something which offers a small amount of friction. For example, you could use something like plastic or glass. Water, most liquids and different types of oil reduce friction. Powder, oil and grease are used in between surfaces to also reduce friction.
tires are made of rubber and rubber can cause friction
In general rolling friction is any friction specifically related to the rolling motion. The friction on the axle to hub bearing, the tire flexing, the tire tread on the surface of the road and so on.
Antilock Brake System (ABS) & tread on the tires.
Friction or grip if it's friction i think the tyre with the most contact with the road surface. If it's grip then the one with the tread
It is an indicator of tire tread wear.
It does not! In fact will DEcrease contact and therefore friction. A bald or smooth tyre will be best on dry surface. The purpose of tread on tyres is to sipe away water on wet road and a rough tread would act in similar manner though far less efficiently.
If you mean tire tread depth, the minimum is 1.6mm.
Tire spec in PA is 2/32 of an inch of minimum tread
Minimum LEGAL tire tread depth is 2/32nds of an inch.
1 mm on whole tire. If any part of tread is less then it should be replaced.
The tread is what grips the road.
Tire spec in PA is 2/32 of an inch of minimum tread