A system of bodies that is capable of free vibrations is called an oscillatory system. Properties of the system:
-the presence of a state of stable equilibrium;
-the presence of an internal force that returns the system to a state of equilibrium;
-the presence of inertia, due to which it does not remain in a state of equilibrium;
– low friction.
Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.