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Force Of Friction Calculator

Last updated: Monday, May 01, 2023
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The force of friction is a type of contact force that opposes motion between two surfaces in contact. It arises due to the microscopic irregularities of the surfaces in contact and the interlocking of their rough surfaces. The force of friction can act in both directions, either opposing motion (static friction) or slowing down a moving object (kinetic friction).

The magnitude of the force of friction is proportional to the force pressing the two surfaces together, which is known as the normal force. The greater the normal force, the greater the frictional force will be. However, there is a limit to the maximum amount of force that friction can exert, which is known as the coefficient of friction. This coefficient depends on the type of surfaces in contact and their state of motion (static or kinetic).

The force of friction is an important concept in physics and engineering as it plays a significant role in many everyday situations such as walking, driving, and braking. It is also used in designing machinery and equipment, such as brakes and gears, to control and manipulate motion.

The formula for determining the force of friction is defined as:
\(F_f\) \(=\) \(\mu\) \(\cdot\) \(N\)
\(F_f\): the friction force
\(N\): the normal force
\(\mu\): the coefficient of friction
The SI unit of force is: \(Newton \text{ }(N)\)
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Use this calculator to determine the friction given the surface coefficient of friction and the normal force.
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the normal force
the coefficient of friction
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