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Weight is extremely useful in determining the frictional force on an object. Say we have a box on a level surface. The box has a weight of mg(mass times the gravitational constant). Since the box is still, and it is being supported by the ground, there is an equal and opposite force that is being exerted on the box by the ground, which pushes it up. This is known as the normal force. The force of Friction is defined as the greek letter mu(which is the coefficient of friction for the two materials against each other)times the normal force, which in this case is mg. Mu also varies depending on wether or not the box is moving in contact with the ground. A different coefficeint of friction is used instead of the one when the box is at rest. The frictional force on the object is always greater when the object is at rest than when it is sliding. Hope this helps!
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∙ 15y ago
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Force that resits motion?
Force that resists motion is frictional force, viscous drag
What is the basic metric unit of weight?
Weight is the mutual gravitational force between the earth and any object on it.The basic unit of force is the Newton .
What is the independent controlled and dependent variable of how mass effects the force of friction?
The independent variable is mass. The dependent variable is the frictional force.
Are weight and mass he same thing?
No. The relationship is: weight = mass x gravity Mass causes both weight, and inertia. Weight is the force of attraction by gravity, and also depends on the gravitational field, not just on the mass. For more information, check the Wikipedia article "Mass versus weight".
SI measure of force and weight?
Force is measured in Newtons. Weight is a force, therefore it is also measured in Newtons.Force is measured in Newtons. Weight is a force, therefore it is also measured in Newtons.Force is measured in Newtons. Weight is a force, therefore it is also measured in Newtons.Force is measured in Newtons. Weight is a force, therefore it is also measured in Newtons.
What effect does weight have on friction?
Weight affects the frictional force between two surfaces. As weight increases, the normal force between the surfaces also increases, which in turn increases the frictional force. This means that greater weight can result in higher friction between surfaces.
What relationship exists between the static frictional force and the normal force of an object?
The static frictional force is directly proportional to the normal force acting on an object. As the normal force increases, the maximum static frictional force that can be exerted on the object also increases.
Does gravity have an effect on friction?
Yes, gravity affects the normal force between two surfaces, which in turn influences the frictional force between them. In general, an increase in weight due to gravity can increase the frictional force between two surfaces.
Why does weight affect frictional force?
Weight affects frictional force because friction is a force that opposes motion and is directly proportional to the normal force acting on the object. The normal force acting on an object is influenced by its weight, so an increase in weight results in a greater normal force and therefore a greater frictional force.
What depends on the roughness of the surface and size or weight of the object?
The frictional force between the object and the surface depends on the roughness of the surface - smoother surfaces generally have lower friction. The weight or mass of the object affects the normal force acting on it, which in turn influences the frictional force.
How mass related with friction and by which experiment it is prove that frictional force dirctly proportional to normal reaction?
The frictional force is directly proportional to the normal reaction force, which is the force perpendicular to the contact surface. This relationship is proven through the observation in experiments such as the classic block on an inclined plane experiment, or by analyzing the motion of objects on a surface where friction is the only significant force acting. The coefficient of friction is a ratio that quantifies this relationship between the normal force and frictional force.
What determines the size of a frictional force?
The size of a frictional force is determined by the roughness of the surfaces in contact and the normal force pushing them together. The frictional force opposes the motion of the objects and increases with the weight of the objects in contact.
What is the relationship between contact force and friction?
Contact force is the force exerted between two surfaces in contact with each other. Friction is the force that resists the motion of an object sliding or rolling over a surface. Contact force contributes to the frictional force between two objects - the greater the contact force, the greater the frictional force.
Who first stated the relationship between buoyant force and weight?
Archimedes first stated the relationship between buoyant force and weight, known as Archimedes' Principle. He discovered that an object submerged in a fluid experiences an upward force equal to the weight of the fluid it displaces.
What frictional force?
Frictional force is the force that opposes motion between two surfaces.
2 kinds of forces?
Gravitational force, which is the force of attraction between two masses, and electromagnetic force, which is the force between electrically charged particles.
What is the value of the normal force if the coefficient of kinetic friction is 0.22 and the kinetic frictional force is 40 newtons?
The normal force can be calculated using the equation: Normal force = Weight - Kinetic frictional force. Given that the kinetic frictional force is 40 N, the normal force depends on the weight of the object and additional information is needed to calculate it.
