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A resistance that acts when an object moves.
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∙ 11y ago
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What is meant by tribology?
It is the study of friction and wear
What is meant by the force of friction?
Friction is a force, which (usually) tends to slow moving things down.
Does brakes on a bicycle have a lot of friction or not much and is it useful or not useful?
Brakes are meant to have a lot of friction and it's useful.
What is friction and what is meant by maximum friction?
Friction is a force that opposes motion. Maximum friction is the?æ force that must be overcome in order for a body to start moving.?æ Maximum friction is equal to the?æ product of normal force and coefficient of the friction.
Why does friction reduce the mechanical advantage in machines?
Because some energy is expended in overcoming the friction and not applied to performing the task which the machine is meant to do.
How friction create harm while cycling?
Friction can be either good or bad depending on where it is. Friction between parts that are meant to stay put is a good thing, friction between parts that are supposed to move is a bad thing. Tires for instance are meant to roll along the road, not slide. Here, friction is good. But then you cone to the hubs. In here, the wheel has to move around the axle. Here, friction is bad. Here, friction will turn effort that would otherwise have gone into moving the bike forward into heat, which is no use to the rider at all.
Why does friction and gravity act on a soccer ball?
That question doesnt exactly make sense, but if you meant HOW does friction and gravity AFFECT a soccer ball, the friction of the grass and ball affects the speed, and the gravity pushes the ball down to the ground. Hope it helped! -Cara
Is coefficient of friction or coefficient of limiting friction are same?
Limiting friction is just the maximum static friction force (if you go over that point static friction becomes kinetic friction).Let f = frictional force,c = coefficient of frictionN = Normal forcefmax = cN = limiting frictionAlthough the term coefficient of limiting friction is not really used, I'd assume it would just be "c" (it's a coefficient after all). So they would be the same.If you meant is coefficient of friction the same as limiting friction, than the answer is no. Coefficient of friction is just the "c" in the equation. Limiting friction however is the product of the coefficient and the normal force.
What a need of hard chrome plating?
Hard chrome plating is meant for better coefficient of friction, hardness and rust protection.
Where on a bicycle friction can be a nuisance?
the gears and where the axis of the wheels
What is meant by engine wear?
Any mechanical movement produces friction. Friction, even with oil to assist reducing it wears an engine so tight fitting pistions for example become slighty losser and this can cause reduced power.
What is the force which tends to present motion between two surfaces called?
If you meant "prevent" motion, rather than "present" motion, the answer is friction.
