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Abrasion
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∙ 8y ago
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How do you find the minimum coefficient of static friction for a mass on an incline of 32 degrees?
The equation for friction is F=uN. F (friction), u (coefficient of friction), and N (normal). So you first need to solve for the normal by using Newton's second law. Also solve for the x component of the gravity force. Since it is static friction, you know it should be at rest, so that x component force should be the same as the force of friction. Knowing that and the normal, plug it into the equation and solve for u.
A process in which magnetically susceptible material is extracted from a mixture using a magnetic force?
The process is known as Magnetic separation.
Why Kinetic Friction is not called self adjusting force?
really, all types of friction can be thought of as self adjusting forces, since they arise only because of some initial force. you have a good question, we should start calling them static self adjusting force, kinetic self adjusting force, and rolling self adjusting force. also the frictional force is dependant on the weight of the object and the surface, not the speed, so using the word kinetic can be misleading.
What does the spring scale measure if measured in newtons?
I just read that you can weigh anything on it.
What weathering process could be modeled using sandpaper to design an experiment to test the resistance to weathering of various type of materials?
Abrasion is often likened to a sandpaper effect acting on the rock in question. Abrasion occurs when an agent of erosion carries sediment and the sediment collides with a rock face, breaking both up.
How can people influence physical weathering?
People can affect weathering physically by walking over rocks, sliding them, or anything to weather it using friction.
What weathering process can be modeled using sand paper?
Abrasion.
If friction isn't dependent on surface area but only on the coefficient of friction between two surfaces and the reaction force then why do racing cars use bigger tires with greater area?
Friction doesnt not depend on the surface area...but the force of friction does! We cannot change the friction of a material but we can change the force due to that friction on another material in contact with it. Using this concept, racing cars have bigger tires to minimise the force of friction acting on them. They cannot change the friction of the road, so they change the resultant force on the tires.
Unbalanced force opposing motion between touching surfaces?
The unbalanced force that opposes motion between touching surfaces is called friction. It acts in the opposite direction of the applied force and depends on the nature of the surfaces and the force pressing them together. Friction can be reduced by using lubricants or by increasing the smoothness of the surfaces.
How the friction is called somewhat evil in our life?
Because it takes all the F=μN out of our lives! F- Force in Newtons (N) μ - Greek letter Mu (Coefficient of friction with no units) N-Normal force (force perpendicular to surface measured in newtons N) (found using mass * gravity assuming you're on a flat surface) When a surface has a lot of friction, the force applied is lowered due to the higher friction coefficient. When there's more friction, it takes more force to move an object on a surface.
Why is the reading on the spring scale equal to the friction force in each case?
A scale is a force indicator. The reading on a scale is simply telling you what force is being applied. If you try dragging an object across the floor using a spring scale, you are applying a force to the spring scale which is applying a force to the object. The spring scale cannot put more force on the object than you are putting on the scale, and it has to put all of the force that you put on it on the object you are pulling. The only other force on the object besides your pulling force is friction. If the object is traveling at a constant velocity, the forces on it are equal. That means that your pulling force has to equal the force of friction. The scale that you are using will read the amount of force you are putting on the object which will tell you how much friction is pulling backwards on the object because these forces are equal strengths.
How do you find the minimum coefficient of static friction for a mass on an incline of 32 degrees?
The equation for friction is F=uN. F (friction), u (coefficient of friction), and N (normal). So you first need to solve for the normal by using Newton's second law. Also solve for the x component of the gravity force. Since it is static friction, you know it should be at rest, so that x component force should be the same as the force of friction. Knowing that and the normal, plug it into the equation and solve for u.
Is pulling out a nail using frictional force?
The hammer or crowbar is applying force to extract the nail, and is opposed by the friction between the board and the outside surface of the nail.
What solid surfaces slide over each other the kind of friction that occurs is called friction?
When two objects are moving relative to one another while rubbing together, the frictional force between them is called kinetic friction. On a force diagram, the frictional force always points opposite the direction of motion between the objects, resisting the movement. Kinetic friction (Fk) can be described using the equation: Fk = μn Otherwise known as "sliding friction"
What is a proper sentence using weathering?
The damage was extensive due to weathering. We are weathering this crisis together.
How do you overcome friction?
Friction is overcome by the addition of force. But there are some basic ways to avoid excess friction: 1) Reducing friction between moving surfaces by using lubricants such as powders, oil or water. 2) By using surfaces that have less friction such as plastic or teflon where the parts come together. 3) Change the sliding friction to rolling friction, using wheels, rollers, or ball bearings. 4) Reduce the weight of the object being moved across a surface. Less weight usually means less friction for any given surface.
What is the least frictional force?
That is a poorly phrased question. Friction is a force resulting from molecular interactions between substances. It is numerically calculated using the formula F=μmg, where F is the force from friction, μ is the coefficient of friction, m is the mass of the object friction is affecting, and g is acceleration due to gravity. Thus the least frictional force possible approaches zero as either the coefficient approaches zero (think very smooth surface-like ice) or as the mass approaches zero.
