Question

Что это такое? : F=μN, F=mg, F=kx. ?

Answer 1

1. 
F=μN это формула Fтр
F=mg это формула Fт 
F=kx, только F=-kΔx это формула Fупр 

Answer 2

F=μN, F=mg, F=kx

These equations represent different physical forces in various contexts. Let's break them down:

F=μN: - This equation represents the force of friction, where F is the force of friction, μ is the coefficient of friction, and N is the normal force. - The coefficient of friction (μ) is a dimensionless quantity that represents the frictional interaction between two surfaces. - The normal force (N) is the force exerted by a surface that is perpendicular to the surface.

F=mg: - This equation represents the force of gravity, where F is the force of gravity, m is the mass of an object, and g is the acceleration due to gravity. - The force of gravity is the force that attracts objects towards the center of the Earth.

F=kx: - This equation represents Hooke's Law, where F is the force exerted by a spring, k is the spring constant, and x is the displacement from the equilibrium position. - Hooke's Law states that the force exerted by a spring is directly proportional to the displacement from its equilibrium position.

These equations are used in various fields of physics and engineering to calculate and understand the forces acting on objects in different situations. For example, the force of friction is important in determining the motion of objects on surfaces, the force of gravity is crucial in understanding the behavior of objects in free fall, and Hooke's Law helps analyze the behavior of springs and elastic materials.

Please let me know if you have any further questions!