Give two examples where friction is undesirable

Friction can work for or against us. For example, putting sand on an icy sidewalk increases friction so you are less likely to slip. On the other hand, too much friction between moving parts in a car engine can cause the parts to wear out.

If there is no friction between the contact surfaces, then a body can't be stopped without the application of external force. In the same time a person can't walk on the ground if there is no friction between the ground and our legs also no vehicle can run on the ground without the help of friction. Desirable effects of friction are: 1. It helps us in movement. It helps to stop a moving object like a car.

Give two examples where friction is undesirable

Can the same change be desirable at one time and undesirable at another? Explain with as an example. The eddy current have both desirable and undesirable effects. A desirable change is always associated with an undesirable change. Give as example. What is friction? Explain it with an example. Mention a change which is always a desirable b undesirable c periodic. Classify the following as desirable and undesirable changes. Soil erosion due to flood. Melting of ice cream. Explain friction in solids. Give examples.

Soil erosion due to flood. Still have questions?

Wiki User. An example of undesirable friction is when a cyclists falls and his face against pavement that skin on the road. Undesirable friction is something that is not controllable. The force of friction between two objects is the product of the normal force and the coefficient of friction. The normal force is the component of force that is perpendicular to the plane of friction.

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Give two examples where friction is undesirable

When a body is in motion, it has resistance because the body interacts with its surroundings. This resistance is a force of friction. Friction opposes relative motion between systems in contact but also allows us to move, a concept that becomes obvious if you try to walk on ice.

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You can see what they look like in the Figure below. Explain friction in solids. Sliding friction is friction that acts on objects when they are sliding over a surface. User Settings. Heat, in some cases. Why does friction warm your hands when you rub them together? More answers. Look at the metal surfaces in the Figure below. In addition, there is a static coefficient of friction applicable to a stationary situation and a kinetic coefficient of friction applicable when the object is already moving. Friction is Undesirable: A friction is undesirable during ice skating or when a block is lifted or put down on the truck with the help of some inclined plane. You can move heavy boxes by sliding them over the ground.

It may bring up images of slipping around on ice or of figuring out how high you can angle your binder before the pencil rolls off. As it turns out, those are actually two different types of friction — the first being kinetic friction and the second being static friction.

Static, sliding, and rolling friction occur between solid surfaces. That's because ice is very slippery and offers very little friction. Orotic aciduria type II reflects the deficiency of the enzyme: A Orota Document Information click to expand document information Original Title Friction-desirable-undesirable. Outside wooden steps may get slippery when they are wet. Related Solutions Can the same change be desirable at one time and undesirable at another? On the other hand, too much friction between moving parts in a car engine can cause the parts to wear out. Carousel Previous. Melting of ice cream. Rolling friction is much weaker than sliding friction or static friction. For example, treading of shoes and tires is done to increase friction. User Settings.