Friction : impulsive or non impulsive?

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In summary, the maximum value of friction is dependent on the normal reaction and the normal reaction can be impulsive. This implies that friction can also be impulsive, as seen in examples such as the application of "English" to a pool cue ball and topspin to a tennis shot. Friction is a complex concept that involves different surfaces, forces, and impulses, such as pressure drag.
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Maximum value of friction depends upon the normal reaction and normal reaction can be impulsive, so does that imply friction can be impulsive?
 
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swayne221b said:
Maximum value of friction depends upon the normal reaction and normal reaction can be impulsive, so does that imply friction can be impulsive?

Sure. A couple of examples that spring to mind are the application of "English" to the cue ball on a pool table and the behavior of a spinning rubber ball as it bounces.

Edit: And the application of topspin to a tennis shot as the racket hits the ball.
 
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There are a bunch of different kinds of friction. It depends on the surfaces, forces, and definitely the impulses. If you account for pressure drag as a part of friction, it's kinda like skipping a rock.
 

FAQ: Friction : impulsive or non impulsive?

What is friction?

Friction is a force that resists motion between two surfaces in contact. It is caused by the microscopic irregularities and interactions between the surfaces.

What is impulsive friction?

Impulsive friction, also known as kinetic friction, occurs when two surfaces are moving relative to each other. It is typically greater than static friction and can cause objects to slow down or come to a stop.

What is non-impulsive friction?

Non-impulsive friction, also known as static friction, occurs when two surfaces are not moving relative to each other. It is typically less than kinetic friction and can prevent objects from starting to move.

How is the amount of friction determined?

The amount of friction depends on several factors, including the nature of the surfaces in contact, the force pushing the surfaces together, and any external forces acting on the objects.

What are some real-life examples of impulsive and non-impulsive friction?

An example of impulsive friction is a car braking on a road, where the brake pads create friction with the wheels to slow down the car. An example of non-impulsive friction is a book resting on a table, where the friction between the book and the table surface prevents the book from sliding off.

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