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A hockey puck has a coefficient of kinetic friction of mk .1-. if the puck feels a normal force (fn) of 5N what is the frictional force that acts on the puck?
This type of problems about friction are extremely simple: You just multiply the normal force by the coefficient of friction to get the frictional force.
What is the coefficient of kinetic friction between the 13.0kg wooden crate and the horizontal force of 31N of the floor?
The coefficient of kinetic friction can be calculated using the formula: coefficient of kinetic friction = force of kinetic friction / normal force. The force of kinetic friction can be found using the formula: force of kinetic friction = coefficient of kinetic friction * normal force. Given the force of 31N and normal force equal to the weight of the crate (mg), you can calculate the coefficient of kinetic friction.
How does the direction of the force of kinetic friction is related to the direction of of an objects motion?
The force of kinetic friction acts in the direction opposite to the direction of an object's motion. This frictional force works to resist the movement of an object over a surface, causing it to slow down or come to a stop.
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 is the sign of the work done by the frictional force?
The work done by the frictional force is negative because the force opposes the direction of motion. This means that the frictional force removes mechanical energy from the system by transforming it into heat, resulting in a decrease in the object's kinetic energy.
Kinetic frictions is the frictional force needed to start an object at rest into motion?
false. Kinetic friction is the friction acting upon a moving object. It would be the frictional force against you if you pulled a box across a table. Static friction is the frictional force needed to overcome to get an object at rest into motion.
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.
Friction is the frictional force needed to start an object at rest into motion.?
static
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"
Kinetic friction is the frictional force needed to start an object?
Kinetic friction is actually the frictional force that opposes the motion of an object already in motion. It occurs when two surfaces are in contact and sliding past each other. The force required to start an object moving from rest is called static friction.
A hockey puck has a coefficient of kinetic friction of mk .1-. if the puck feels a normal force (fn) of 5N what is the frictional force that acts on the puck?
This type of problems about friction are extremely simple: You just multiply the normal force by the coefficient of friction to get the frictional force.
Is Kinetic friction is affected by the weight of the object?
Kinetic friction is independent of the weight of the object. It is determined by the nature of the surfaces in contact and the force pressing them together. The weight of the object affects the normal force, which in turn affects the frictional force, but the coefficient of kinetic friction remains constant for a given surface.
What is the effect of decreasing the block in contact with the table on kinetic friction?
Decreasing the block in contact with the table reduces the normal force acting on the block, which in turn decreases the frictional force. This results in a lower kinetic friction force between the block and the table.
Which type of friction can best be described as the force between objects that are moving?
Kinetic friction is the type of friction that can best be described as the force between objects that are moving. It occurs when two objects slide or rub against each other.
The amount of force pushing two surfaces together affects friction?
Yes, the force pushing two surfaces together affects friction. As the normal force increases, so does the frictional force that resists relative motion between the surfaces. This is described by the frictional force equation, which includes the coefficient of friction and the normal force.
What is the difinition of Frictional force?
A surface force opposing motion. Sticky friction opposes motion at zero speed and kinetic friction opposing motion at non-zero speed.
How can one consider a frictional force on a track as constant while frictional forces are non conservative?
This is a very good question. A conservative force is defined as a force that doesn't remove energy from a system. Such forces as a spring force are conservative. However, wherever a frictional force is exerted, heat is produced. It takes energy to make heat, and the energy comes from the kinetic energy of whatever objects have frictional forces exerted upon them. A frictional force will eventually remove all of the kinetic energy from a system. However, a frictional force is constant. The force of friction is defined as the coefficient of friction times mass times the gravitational constant. (The coefficient of friction is represented as the greek letter mu). Regardless of the remaining Kinetic energy in a system, the frictional force will not change, thus a frictional force is constant, but not conservative. Hope this helps whoever asked this question! --An AP PHYSICS STUDENT
