What is FK in physics?

Fk is kinetic friction coefficient. It is different from Fs and do not get confused. Generally Fs is greater than Fk for the SAME object and that is why static friction is usually greater than kinetic friction of the SAME object.Click to see full answer. Also question is, what is kinetic friction?Kinetic friction is a force that acts between moving surfaces. An object that is being moved over a surface will experience a force in the opposite direction as its movement. The magnitude of the force depends on the coefficient of kinetic friction between the two kinds of material.One may also ask, what do you mean by force? In science, force is the push or pull on an object with mass that causes it to change velocity (to accelerate). Force represents as a vector, which means it has both magnitude and direction. Moreover, how do you calculate FK? Kinetic Friction Formula Kinetic Friction Formula Questions: Answer: On a flat surface, the normal force on an object is η = mg. Using this, the formula can be used to find the force of friction: Fk = μk η Answer: On a flat surface, the normal force on an object is η = mg. Fk = μk η What are the 4 types of friction?Friction is the force that opposes motion between any surfaces that are in contact. There are four types of friction: static, sliding, rolling, and fluid friction. Static, sliding, and rolling friction occur between solid surfaces. Fluid friction occurs in liquids and gases.

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