Give two examples where friction is undesirable

Friction can work for or against us.

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

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. The coefficient of friction is specific to the two materials, in this example the block of wood and the floor. 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 plays a vital role in our daily life. Without friction we are handicap. It is becomes difficult to walk on a slippery road due to low friction. When we move on ice, it becomes difficult to walk due to low friction of ice. We can not fix nail in the wood or wall if there is no friction.

If the friction is more between the block and inclined surface then a large force is required to push the block on the plane. Is this content inappropriate? Try sticking the chopstick down into the bottle.

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?

Friction is a force that resists movement between surfaces in contact. It is caused by the interactions between the molecules that make up objects. There are three types of friction: Static Friction , which resists motion between surfaces that are not moving with respect to each other at their point of contact; Kinetic Friction , which resists motion between surfaces that are moving with respect to each other at their point of contact; and fluid friction, which resists the motion of bodies moving through gases and liquids. All types of friction depend on the materials comprising the surfaces of the objects and substances involved, as well as on the normal force they exert on each other that is, the force with which they are pressed together. Friction between surfaces is largely the result of adhesive forces between them that must be overcome to move them.

Give two examples where friction is undesirable

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Thus friction is desirable or undesirable depending upon the condition and types of work. This time, when you pull up on the chopstick, you should be able to pick up the whole bottle. Explain it with an example. Undesirable friction is something that is not controllable. Force and Friction Force and Friction. Project Project. When you grab the chopstick and pull up, what happens? 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. Fun with Friction: Activity 1: Take two pieces of paper. Activity 1: Take two pieces of paper. You observe the pencils rolling as the book moves. For example, you use sliding friction when you write with a pencil. Undesireable when trying to evade the tackle. Sliding Friction Sliding friction is friction that acts on objects when they are sliding over a surface. When is friction desirable and undesirable in rugby?

Have you ever wondered what is friction and force? How do we relate them to our day-to-day activities? Friction is a natural phenomenon that occurs when there is contact between two objects.

User Settings. Figuratively, a camel's nose is a metaphor for a situation where the allowance of a small act will lead to a larger, undesirable act. Fluid Friction Fluid friction is friction that acts on objects that are moving through a fluid. Explain with as an example. The wadded piece will fall to the ground immediately. What is a camel's nose? Report of Micro-Project. Document Information click to expand document information Original Title Friction-desirable-undesirable. Ice skating. To reduce friction, oil is added to the engine.