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What factors influence the magnitude of sliding friction?
weight ,roughness of the surface and applied force
What affect sliding friction?
Sliding friction, or more formally known as Dynamic Friction, or Kinetic Friction, is a resistive force that arises when one object is in contact with another object and the objects are in motion with respect to each other. Friction is called a resistive force because it always resists, or pushes against, the initial force causing the motion..The factors that affect the magnitude of dynamic friction are:the coefficient of dynamic friction between the two bodies; andthe magnitude of the original force responsible for the motion.
Is it true that weight affects the amount of friction between the object and a surface?
Yes. Weight, being a force perpendicular to the surface, affects the magnitude of the friction, but not the friction coefficient.
What is required to get a stationary object moving?
An outside force is needed. If friction comes into play (which it likely will), the magnitude of the applied force must be greater than the force of friction acting upon the object in order for the object to move. FYI, the force of friction is equal to the coefficient of static friction times the normal force (equal to the weight of the object).
What is the force when two materials rub together?
The force when two materials rub together is called friction. Friction is a resistive force that opposes the relative motion or tendency of motion between two surfaces in contact. The magnitude of the frictional force depends on factors such as the nature of the surfaces and the force pressing them together.
How do friction and gravity relate?
The magnitude of friction is proportional to the magnitude of the normal force which is proportional to the magnitude of gravity(The magnitude of the normal force is indirectly proportional to the magnitude of gravity.). The magnitude of the normal force, N, compared to gravity, G, on angle z, is: N=cos(z)*G On a flat surface. N=G The coefficient of friction, whether static or kinetic, f is therefore: N=cos(z)*G*f
Is a force of friction a vector or scaler quantity?
Either, or both. Motion can be described in either vector or scalar terms. Speed is a scalar quantity, having only a magnitude. Velocity is a vector quantity, having both magnitude and direction. Acceleration is a vector quantity.
What factors influence the magnitude of sliding friction?
weight ,roughness of the surface and applied force
What affect sliding friction?
Sliding friction, or more formally known as Dynamic Friction, or Kinetic Friction, is a resistive force that arises when one object is in contact with another object and the objects are in motion with respect to each other. Friction is called a resistive force because it always resists, or pushes against, the initial force causing the motion..The factors that affect the magnitude of dynamic friction are:the coefficient of dynamic friction between the two bodies; andthe magnitude of the original force responsible for the motion.
Is it true that weight affects the amount of friction between the object and a surface?
Yes. Weight, being a force perpendicular to the surface, affects the magnitude of the friction, but not the friction coefficient.
What is required to get a stationary object moving?
An outside force is needed. If friction comes into play (which it likely will), the magnitude of the applied force must be greater than the force of friction acting upon the object in order for the object to move. FYI, the force of friction is equal to the coefficient of static friction times the normal force (equal to the weight of the object).
What is the force when two materials rub together?
The force when two materials rub together is called friction. Friction is a resistive force that opposes the relative motion or tendency of motion between two surfaces in contact. The magnitude of the frictional force depends on factors such as the nature of the surfaces and the force pressing them together.
Does friction have anything to do with numbers?
Yes, friction is a force it possesses magnitude and direction. It's magnitude and direction are measured in in Newtons and radians (or other angular measurement) which are written in numbers.No friction is a phenomenon; numbers a human idea. But numbers can be used by humans to express and calculate many things which concern friction.
Who needs a bigger force to keep them moving a man or a child?
It depends. If you want to lift them up, you have to act a force equal to their weight, so a heavier person would need a force with greater magnitude. If you want to move them horizontally on a plane with friction the heavier person needs a force with greater magnitude again. On a plane without friction no force needs to be acting on them in order to move.
What factors influence frictional force?
Friction is a force acting in opposition to the net force on an object. As such it will always take on the same magnitude and the opposite direction to the net force, constantly adjusting itself - up to a certain maximum. The maximum force that friction can exert to impede motion is determined by two factors: * the coefficient of friction; a constant assigned to the specific combination of the two surfaces in contact. * the normal reaction force; the force pushing the surfaces together. Multiplying these two together gives friction's maximum value. If an object is already moving, friction continues to exert the maximum force that it can, and a slightly adjusted 'kinetic friction coefficient' is used to determine its magnitude. Friction coefficients can be slightly affected in turn by further factors, such as temperature.
What two factors that affect the amount of friction between two surfaces?
The magnitude of the frictional force is directly proprotional to the normal reaction between the two surfaces.(2)Magnitude of the frictional force is independent of shape and area of the surfaces
What is the relationship between surface type and the amount of friction?
The magnitude of the force of friction is a function of the normal (perpendicular) force of the object and the surface properties of the two materials. It's a linear relationship; for example, if an object is sliding along a horizontal table with a weight of 2 lbs, then friction will double if an additional 2 lbs of force is added to the object.
